 # How to measure amplitude

## How to measure wave amplitude

The general formula for determining amplitude is: #Period=360^@/|k|# or #Period=(2pi)/|k|# . The shift change is the length of the transformed graph that is horizontally to the left or right or to the right of its parent function. In this case, d is in the equation, therefore no period is removed.

## How do you measure the amplitude of the sound?

What instrument measures the amplitude? If you want to measure sound noise, this is your first choice Sound Pressure Level meter SPL uses a meter-calibrated microphone to monitor the sound and displays its level in decibels (db). The measured value is usually accompanied by a reference value.

## What is the difference between amplitude and frequency?

The difference between frequency and amplitude is as follows. frequency is a measurement of cycles per second Size is a measure of how large a wave is. The size signifies the force of the wave.

## What is the relationship between size and industry?

Lots energy Depends on wave propagation amplitude The waves of the ocean. Higher waves have higher amplitude Low waves have less amplitude .'S translation energy So trust in amplitude The waves of the ocean. this energy The wave is carried by the wave proportional to the square amplitude .

## What is the formula of levity?

Wave amplitude is usually calculated using a curve and measuring the height of the wave from the resting position Size is a measure of the strength or intensity of a wave. For example, if you look at sound waves, it measures the size of the sound.

## Where is the size in the equation?

Size is distance from the midline to either the top or bottom of the graph .In formula form, size is coefficient in front of the trig function This is a vertical stretch or compression factor.

## What is the magnitude of sin x?

amplitude. A in the expression y = a sin x The graph indicates the magnitude. Indicates how much water you want. Size is distance from the "resting" position (otherwise known as the mean value or average value) of the curve .

## What is the equation of magnitude?

This is the formula for calculating amplitude x = A sin ()

## How do I understand the extent?

Begins a Amplitude PreWork Instrument specifies and identifies your logged-in user IDs. Search for things and understand what has been done by the user. Set user and event attributes. Cross platform detection and separate platform detection

## Volatility formulas

The amplitude of the wave is the largest displacement of the particle in the center from its equilibrium. Expressed A. Size formula can be written y = Asin(ωt+ϕ) y = A s i n (ω t + ϕ)

## What is the formula for calculating amplitude?

No matter how much circuit type you use, calculate the current size by using equations or directly measuring the properties of a circle The equation of current in a circle with a capacitor or inductor is I=Asin(Bt + C) or * I=Acos(Bt + C), Where A, B, C are constants.

## What is the dimensional formula of amplitude?

Dimensional formula amplitude. Dimensional amplitude formula [M L 1 T ] M. = where the mass. L = length. T = time.

## What formula do you use to calculate amplitude and period?

form used acot(bx−c)+ d a cot ( b x - c) + d Variables were used to find the variables amplitude, period, time, change, and vertical change. Since the stylus of the function has no maximum or minimum value, it cannot have a size value. Use the formula π to find the period B. Click on the table to learn more acot(bx−c)+ d a cot ( b x - c) + d Variables were used to find the variables amplitude, period, time, change, and vertical change. Since the pen of the function cot c o t has no maximum or minimum value, it cannot have a size value. Use the formula π to find the period B.

## What is the formula for the amplitude of the graph?

The trigonometric amplitude of the function is half the distance from the highest point of the curve to the lowest point of the curve; (Amplitude) = (Maximum) - (minimum) 2 ext {(amplitude)} = frac {ext{(maximum)(minimum)}}{2}. (amplitude) = 2 (maximum) (minimum)

## What is the graph size and period?

Size and time is size half the distance between the maximum and minimum values of the graph . To find the period, divide 360 ​​by the number before x. The number before x indicates how many cycles occurred.

## How do you find the extent of the bay?

Answer: The amplitude of the function is called sini or cosini multiplier "a" In the shape y = a⋅sin(b(x−c))+d Since this function has no other multipliers besides I, the magnitude is 1

## AM formula

f m and f c are the frequentties of the modulating signal and the carrier signal, respectively. Then the equation AM wave is s (t) = [ A c + A m cos (2 π f m t)] cos

## What are the ways of generating amplitude modulation?

this Heising method The first practical method is to generate an AM radio. This method uses the application of a report of superimposed signals on the anode of a class C RF which increases the voltage power supply. Control carrier

## What are the different forms of amplitude modulation?

type Amplitude Modulation Double Side Band Suppressed Carrier (DSBSC) modulation The transmission wave consists of the upper and lower sideband. But the various but the unconventional and the saying. Single sideband (SSB) modulation this modulation The wave consists of only the upper or lower part. Residual sideband (VSB) modulation

## What is modulation size calibration?

PM calibration Detect Interference With the AM equipment being calibrated, the calibration technician will determine the amount of obstacle received by the instrument. The technician checks to see if the received block is within the specified tolerance. When it comes to endurance, different levels of reading are received.

## Wavelength formula

The wavelength can be calculated using this formula: wavelength = wave velocity/frequency The wavelength is usually measured in meters. The sign for being is λ the Greek lambda, that is, λ = v/f.

## What are three ways to gauge wavelength?

• Set up the ripple tank as shown in the diagram with about 5 cm depth of water.
• Adjust the height of the wooden rod so that it just touches the surface of the water.
• Switch on the lamp and motor and adjust the speed of the motor until low frequency waves can be clearly observed.

## How do you count murder?

I am here to be counted dividing the velocity of a wave by its frequency This is usually expressed as the following equation: the Greek letter lambda (λ) means for I, expressed in meters. v is the wave speed, calculated in meters in seconds.

## What is the formula for finding a wave?

To find the wavelength, you just need divide the wave's speed by its frequency The calculation is taken Wavelength=WavespeedFrequency{\\displaystyle Wavelength={\\frac {Wavespeed}{Frequency}}}. The wavelength is usually used in the Greek lambda, λ is used to represent the display lambda.

## What is the wavelength equation?

The formula is Wavelength It depends on equation : λ = Vf where V = the speed of the waves and f = the frequency of the waves. above equation it is also said Wavelength Equation .

## Size formula

In a way = amplitude (m) ω = angular frequency (radians/second) t = time (second) = phase transposition (radians) of amplitude formula Question: 1) The pendulum of recurrence. The angular frequency of the oscillation is ω = π radians/s The phase shift is = radiant.

## Frequency formula

The frequency formula for a given wave velocity is as follows: f = V / λ In this formula, f represents the frequency, V represents the speed of the wave, and the waves represent the waves. Example: A sound wave is propagated in the air, when the speed of sound is 320m/s, its wavelength is 322nm.

## How do you count frequency in mathematics?

Frequency is the number of repeated events per unit of time. The frequency of repeated events is computed counting the number of times that event occurs within a specific time period, then dividing the count by the length of the time period .

## What is the unity and formula of the frequency?

The frequency formula. SI units hertz The said Henry Rudolf Moreover, 1 Hz means one cycle per second. Frequency = 1 / Period = Number of Periods / Time. f=1/T=N/tT=cycle, time of cycle N = fixed number of cycles T = fixed time. Formula of Derivation

## What is the frequency equation or formula?

Three-dimensional Formula Ex Frequency M = mass L = length T = hour

## How are frequency computed in physics?

In physics, the frequency of waves is the number of crests passing through the second point (the crest is the top of the waves). Hertz (Hertz symbol) is a unit of frequency. The relationship between frequency and wavelength is expressed by this formula: f = v / λ {\f = v / \\lambda}.

## What is the SI unit of amplitude?

This distance is called amplitude, which is the proper height of the waves located above or below the equilibrium. The symbol A is used to indicate the amplitude of the wave. If there is a unit of amplitude metre (m).

## How do you measure the extent of sound waves?

The amplitude describes the depth of the pressure currents, or "scroll" of the sound, and is usually used when. A measurement decibel (dB) scale Small fluctuations in amplitude (waves of short pressure) produce weak or soft sounds, while large fluctuations ("large waves of pressure) produce strong or large sounds.

## What do you use to measure the amplitude of the sound spectrum?

The amplitude of the sound waves is the degree to which air particles are excised by compression and dilution. They know that the intensity of the "I" is square and flying. The volume is related to the intensity of the voice. The volume perception is related to the sound level in decibels.

## How much noise is measured in the graph?

when you Prove sound Graphic waves: the amplitude Yes the chief of the Think how great the waves emanating from their center are the they are waves. greatness of sound It is measured in decibels (dB). The fact that a measure of The strength of the relationship to How much energy? the The waves are crushed.

## How is the sound frequency determined?

The frequency is the speed of the vibration, that is for sure the bitumen of the sound It is only meaningful or meaningful for musical sounds with very regular waveforms. The frequency is measured the number of The waves cycle in one second.

## Why are size and frequency important in music?

Amplitude It is important for balance and control the greatness of sounds the Scroll control CD player. Too the origin of the word amplifier, device the amplitude of A waveform. The frequency is the speed of the vibration, that is for sure the bitumen of the sound .

## What do you use to measure the sound's signal amplitude?

AC Amplitude You can measure the extent of the sign by counting the vertical divisions between the highest point and the lowest (maximum and minimum) sign. You can acquire the amplitude you want by multiplying the number of vertical divisions by the voltage/division setting. In like manner, how do I find the extent of the waves?

## What is the unit of greatest amplitude?

To To make this easier, they are used to express amplitude in logarithmic units, which are called decibels. si the amplitude of In a way signal (as defined above peak or RMS) You can then define the Decibel (dB) step is: where is the relation amplitude .

## What better way to compare two units of size?

unity of Amplitude It is generally better to compare two amplitudes by their nature than the difference To say that a signal &#39s amplitude one factor greater than the other of Two things are more informative than saying that it is larger than 30 milligrams. This is all about measure of amplitude (e.g. RMS or peak).

## How to measure the amplitude of sound energy?

When you look at the sound wave in the graph, the amplitude is the height of the waves at their center of position and makes the sound waves. There's a volume of sound. A measurement decibels (dB) This is a measure of intensity, which is related to the force of the pressure wave. Decibel is a relative measure.

## What is the relationship between amplitude and frequency and activity?

one is amplitude ,This is the far the Rest in position of Maybe one of the valleys to the Above or below. great amplitude Has more waves energy . The Next crowd the number of The waves pass by every second. As more waves pass, more energy every second is transmitted.

## How solid is the sound?

Sound Yes energy This produces a mean pulse, and these vibrations propagate like waves. The How do these waves interact the Mean of determination the Path the sound Sounds good a of the The most obvious sound Quality is quantity. This scroll the greatness of In a way sound confident energy .

## How do you measure the extent of sound power?

In a way decibel Measurement is a method of comparing the ratio of power, intensity or amplitude between two acoustic sounds or an electronic signal. The ratio (R) of the two meanings is in Watts (W 1 and W2);

## what is the best way of measuring sound?

You able measure Even if there is one sound Level meter like this app is out the National Institute of Occupational Safety and Health. The An application can measure DBA noise (sounds like silence you You barely hear her voice) to Whisperer (30 dBA), normal conversation (6070 dBA) and even jet start (140 dBA).

## How is sound intensity measured?

Another important and easily measurable factor is sound strength or volume. she measure sound Strength (also known as) to how sound power or * sound The unit of pressure is called decibel. Decibel is named honorably of Alexander Graham Bell the inventor of each the Phone and the Audiometer. Audimeter is a device that measures performance. Another important and easily measurable factor is sound strength or volume. she measure sound Intensity (also known as) to how sound power or * sound The unit of pressure is called decibel. Decibel is named honorably of Alexander Graham Bell the inventor of each the Phone and the Audiometer.

## How to measure sound level in decibels?

Although there are many measuring guides as well as linear machines; the It is a logarithmic decibel scale. this genus of Scale represents . better sound Really feel the intensity to Our ears. To Accept, think about it of 80 meter high building.

## How do you measure the extent of healthy water

They can also use electrical signals to measure sound characteristics, such as amplitude and frequency. like hydrophones The sound in the water is converted to an electrical signal, which can be augmented, recorded, reproduced, and measured through speakers.

## How is the decibel scale used to measure sound?

The Decibel logarithmic scale is used to measure the amplitude of In a way sound .si the amplitude of In a way sound Continuous inflation of By the same steps the greatness of the sound The magnitude of the grade, which is estimated, will be gradually smaller.

## What unit is the measurement of sound pressure?

1 micropascal (μPa) = 10 6 pA is usually used for sound pressure measurement. Decibel (dB) Measure sound intensity 1/10 Bel. Decibel is a relative unit for acquiring two pressures, and therefore the relation of pressure is to be transmitted.

## Where do I find the padding in the sound field?

This tutorial is created the American Speech-Language Hearing Association (ASHA) Group Sound Field calibration of the Audiology Evaluation Committee and accepted for publication the ASHA Committee (EB 11990).

## How is sound field measurement used in medicine?

Sound field The same value used is measured to I think the Real ear features of Method of amplification using probe tube measurement method or method of Match the gain. Although many questions are related sound field Measurement is still an integral part of There are plenty of clinical reviews.

## Do I need a diaphragm to measure the extent?

You will need to measure amplitude an apple pie order to It is not really appropriate to calibrate an electronic instrument and use such an instrument to fold the measurement. You need a light diaphragm.

## What is the best way of measuring noise pollution?

There are two basic options of Track and measure noise pollution : sound Step measurement meter (ISO: 19962: 2017 ISO: 19961: 2016) and noise mapping for the calculation of acoustic features sound vitality of sound Source (transportation, industrial facilities, etc.) (Subramani et al., 2012).

## What do you need to know about the sound levels of meters?

The Requirements to measure to Condensed to take" the Full coverage of It is very difficult to use in a certain area the sound Herennius metre The sound Has a grade meter of Calibrate the microphone, run, and block the electronic.

## What effect does the audio spectrum analyzer have?

In a way spectrum Analyzer is a measuring tool that displays real-time analysis frequency of I hear an incoming signal. Spectrum Analyzer display the The result is graphical. The The horizontal axis shows the measured frequency and pitch in Hertz. The vertical axis display the amplitude of The frequency is measured in decibels.

## How do you measure sound frequency?

Yes exactly what think to measure What Yes the Difference between 432 and 440 Hz tones. The Audacious can also produce tones at 432 or 440 Hz (or any other frequency), however you think to Listen to the the difference

## How does size affect frequency?

At normal levels of low amplitude, they are no affect Change in frequency amplitude. Finally, I beg of you, you may notice that this is like a symbiosis and co-dances of matter and gravitational waves: the very thick mass actually distorts space itself, which is the medium for transmitting gravity.

## What effect does the frequency have on the amplitude?

Amplitude of the Increase the output signal and Like losing weight the entrance frequency Variety. Example si the frequency of the To increase signal input the The operative point will be moved in the following direction the at the chart. Lead to increase the amplitude of the output signal.

## What are size, equality, and frequency?

Size is maximum displacement (change in position) from the undisturbed position . The wavelength (in λ) is the distance from any point in the wave to the points exactly the same. Frequency is the number of waves passing in one second point.

## What is the relationship between frequency and amplitude?

They are connected because Amplitude is the ■■■■■■ of the wave Frequency is the number of waves that take place at any given time. If you've been to the beach, it's often as frequent as it is hit by the waves. The size is the tip of the wave that strikes you.

## What is the FM system?

FM. (telecommunications) a method of transmitting information using a radio-frequency carrier wave The wave carrier frequency changes according to the amplitude and polarity of the input signal, and the wave carrier amplitude has not changed.

## What is PM modulation?

Phase modulation (PM) is a modulation pattern for conditioning communication signals for transmission This message represents the code change at the time of running the cursor.

## What is the frequency modulation index?

The frequency modulation index describes how the signal carrier frequency and the amplitude of the transmission signal frequency modulation (FM) signal. or. A rhythm is defined as a frequency index ratio of maximum frequency deviation of the carrier signal to the frequency of the message signal .

## What is the formula of levity?

Amplitude is the maximum height observed in the wave. Size in decibels is expressed using A. The formula for collecting volatility is: A = Amplitude of the wave [decibels] D = Distance traveled by the wave [meters] F = Wave frequency [hertz]

## What is the difference between plain 4 amplitude and frequency?

What is the difference between Amplitude and Frequency ? Amplitude is the size the vibration and This determines how big the sound is . The unity frequency A measurement is Hertz (Hz). In a way frequency 1 Hz means one wave per second cycle. The amplitude Ex the Carrier is Send for the data or information.

## How to calculate amplitude, time, time, change and frequency?

Therefore the amplitude is 1 , the period is 2π, and there is no period transposition or vertical transposition

## How does the height of the amplitude equal the sound?

prince amplitude is He responds by shouting. The Waveform representation conversion the Change sound waves pressure in graphics is It's easier to understand. Integer waves is It is composed of places of high pressure and alternating parts of pressure. The Expressed in high pressure area the Summit the Graphics.

## How does a tune size work on AM radios?

Amplitude a piece of music is The art of a piece of music the amplitude Actors vary from person to person the The sign is a sign. AM radio broadcasts carried radio signals at a lower frequency, which helps them spread over long distances. Sometimes PM code will jump the The Ionosphere.

## What is the difference between the amplitude and the frequency of the waves?

The difference is between frequency and amplitude frequency is a measurement of cycles per second Size is a measure of how large a wave is. The size signifies the force of the wave. The most important conditions for these waves are wavelength, frequency, and amplitude. What are size and frequency?

## Does size affect the force of the wave?

The quantity energy through the waves is and the amplitude Ex the The waves of the sea. chief energy Waves is Owning one's own amplitude A low energy Waves is Personality is low amplitude Put a lot of things energy It has no effect on the beat the to be; the frequency or* the speed the pulse. The energy Change to beat the amplitude This is the pulse.

## What is the relation between the wave energy and the amplitude?

energy is proportional to the square of the amplitude The force of the wave is defined by the quantity. These two quantities are directly related. And this is because, as speed increases, energy increases, and vice versa. Power is proportional to the square of the wave's quantity.

## What's going on when size increases?

higher amplitude It responds to a louder sound or a stronger tremor. more amplitude Changing the frequency does not require an object to move the pulse with a faster speed so that it moves from one end to its offset the His genera. Acceleration from moving-in-one to review the Others also have weight.

## How does wave size affect the industry?

The energy carried by the waves is directly proportional to the square of the amplitude Whatever changes in size will affect the performance of this industry. In other words, by doubling the amplitude, the energy gains fourfold.

## What is the relationship between wave amplitude and energy?

The relationship between wave amplitude and energy carries. The force carried by the wave is proportional to the square of its amplitude. The amplitude of the waves is described as the maximum displacement caused by a particle in the center from its position.

## What are your size and energy?

Size is a property of a wave .This is half the distance between a peak and a trough Energy attribute is a system attribute, whichever attribute is retained on the closed system over time. But it can be assigned to individual things, such as waves and particles. It depends on the physical system you are modeling.

## What is frequency amplitude?

Variable size is a measure of change in one time. The greatest height perceived in the wave is called amplitude. A is represented and expressed in decibels (dB). The frequency of the waves is F.

## How is Size Measured?

come a Second wave , like a sound wave , amplitude Maximum displacement measured of a A particle from its place of the balance.

## How do you find the size of the time?

The size A can be determined by swapping the formula: The sine of π can be solved with a calculator (note that the radiant value is given): sin (π) = 1 . Therefore the amplitude of the time t = s: A = meters.

## To what extent does it apply to the wave?

this amplitude Height of waves, 10 cm. The transfer of time. Shift time chart display how The disposition of a point in a wave changes with time.

## What is the size of the pendulum?

Since the angle is 5°, the amplitude is cm and the speed is km/h. © Network Project |Impress and Data Protection |German: Rad, Pendel

## Find the ECG amplitude. measure

The size of each deflection/wave is used PR segment as the baseline Figure 4. Transmission of the pulse from the atrium to the ventricle. The PR interval indicates whether the pulse transmission through the AVnode is normal (first image), abnormally slow (second image), or omitted (third image).

## What is the normal measurement value of an electrocardiogram?

Normal ECG. Standard calibration. Standard electrocardiogram is recorded 25mm/sec The cutoff frequency is not less than 150Hz In adults and 250Hz TO THE CHILDREN.

## What is the normal axis of the ECG?

The axis of normal ranges a 30 degrees to +100 degrees Although some sources use 30 to + 90 degrees. The more the power moves to the right, there will be a deviation of the right axis in ECG.

## What is the normal range of ECG results?

Normal heart rate is approximately 60 and 100 beats a minute An ECG model can also monitor a person's heart, whether the heart beats too fast (tachycardia) or too slow (bradycardia). It can also track any resistance to cardiac plugs that cause these irregularities.

## What is the normal ECG wave?

Normal ECG Waves: Normal ECG produces three specific patterns of specific waves in the cardiac cycle. This is the wave P wave, QRS wave and T-wave, P-R interval, S-T segment Pwave: The first thing that appears a little wave is up.

## How to measure the amplitude of the waves?

The wave form can be intuitively observed and measured on the display screen, the vertical axis is the features, the horizontal axis is the time. You will need to measure amplitude an apple pie order to It is not really appropriate to calibrate an electronic instrument to use such an instrument to fold the measurement. You need a light diaphragm.

## How do you find the adjustment range?

First, by computing the reciprocal distance to the nearest point of distance, the size adjustment is measured in dioptera units. It can then be compared with the normal adjustment after age adjustment using the Hofstetter formula (minimum adjustment = 15D- age)

## How to measure the amplitude and frequency

There are basically two ways to measure frequency and amplitude. That is, accelerometers and strain gauges However, in order to obtain a given frequency, the FFT analyzer must be used to resolve the raw data. Size data is a bit tricky because you need an accelerator calibrator.

## What is the magnitude of the sin?

Size of function sinus distance from the middle value or line running through the graph up to the highest point That is the size half the distance from the lowest value to the highest value .

## How do you measure the amplitude of longitudinal waves

In longitudinal waves, such as sound waves, the amplitude is determined maximum displacement of a particle from its position of equilibrium When the amplitude of the wave steadily decreases due to loss of energy, it is called attenuation.

## What is the meaning of amplitude and quantity?

Wavelength is a property of waves, but amplitude is a property of waves oscillation The wavelength and amplitude concepts are widely used in wavelength and vibration, communication, light and other electromagnetic rays, and various other fields.

## Can two waves have the same amplitude?

In In physics, an obstacle is a phenomenon where two waves form a force. wave High, low or equal amplitude You can expect an obstacle anywhere and at any time, but you won't see an example of an obstacle anywhere, because very smooth springs generate very smooth waves everywhere.

## How is the longitudinal fluctuation determined?

Wavelength can always be measured distance between any two corresponding points on adjacent waves In longitudinal waves, an equality measure is performed by measuring the distance from one compression to the next compression or from one dilution to the next dilution.

## Does the amplitude affect the wavelength or the speed of the waves?

Amplitude It doesn't affect that. There is no effect wave speed. Amplitude energy is wave Measure the resting position to The main body armor. In a way wave More energy has a higher comb/higher amplitude .

## What is the best way to test the range adjustment?

1. Install the patient to Close to the left eye to Eye witness of the right eye. 2. Attract the patient's attention to the number of One or two lines greater than near VA. 3. Install patient to Leave letters blank. 4. slowly move the chart closer to Patient, ask the patient to to report

## How do you measure accommodation next?

The linear measure is called to To get close to the point of accommodation 6. Convert the linear distance to the diopter by dividing the adjusted point by 100 in centimeters. Obtained diopter value represents patient value amplitude of accommodation .

## How do I include measurement adjustment?

Mailing address: D Burn Department of Department of Health and Social Services, University of South B atk, London of at a distance. Amplitude of Adaptation (AoA) is a focal point of remote personal adjustment to near. It is measured (Rabbetts 2007).

## Does the level of adaptation decrease with age?

The overall amplitude trend with age is consistent with the data of earlier studies, but the amplitude adjustment in the studies is much smaller. The test object with a constant angular size can improve the accuracy of the measurement "push-up".

## How to measure the amplitude of the complex qrs wave

The size of each deflection/wave is used PR segment as the baseline Refer to Figure I. The QRS complex represents the depolarization (activation) of the ventricles. It is always called "QRS complex", although it may not always be able to display all three waves.

## How are the characteristics of the QRS ECG measured?

Here are some simple steps how to measure this QRS complex : to know QRS On the ECG strip. Determine where QRS complex Yes and to Do this and start measuring end of PR interval to finish of The waves of the ocean. Count the box between two dimensions. Remember, each box represents the second.

## Why is the size of the QRS complex so high?

Amplitude of this QRS complex In a way QRS complex Large amplitude can be explained by hypertrophy or ventricular dilatation (or both) of Both of these). The vein produced by the myocardium of the stomach is proportional to to Ventricular muscle mass.

## How to measure the wave qrs?

Si measure this QRS complex You start measuring fine of PR interval to finish of The waves of the ocean. Determine where QRS complex Yes and to Do this and start measuring end of PR interval to finish of The waves of the ocean. Count the box between two dimensions.

## What is the normal distance between P wave and QRS complex?

The normal PR interval is short to Secondly. Flat between borders of pwave and start of this QRS complex It is called the PR segment and reflects the slow pulse through the junction of the AV node. 