The solid / dashed lines on the wires as shown in your question are used to indicate polarity, eg. for wall warts. Usually * the wire with the white ribbon or dotted lines has the positive (+) end while the other unmarked wire has the negative () end.
Usually the positive wire is red and the ground or negative wire is black. Most speaker cables, however, do not get stained. The good news is that when it comes to speakers, it doesn’t matter which positive and which negative you choose, as long as you are consistent.
In most modern lights, the neutral wire is white and the hot wire is red or black. On some types of devices, the two wires are the same color. In this case, the neutral is still somehow identified. In some cases there is a fine print on the cable box.
You will see a ribbon on one of the threads. In this case this wire is neutral. When the plastic is clear, the wires are silver on the neutral side while they are copper on the hot side. After determining the polarity, connect the hot wire to the black wire of the circuit and the neutral wire to the white wire of the circuit.
Positive The positive power line is red. Negative The negative current wire is black. Ground The ground wire (if applicable) is white or gray.
Each speaker cable has an indicator to distinguish it, eg. B. Color. On some speaker cables, the insulation is clear or transparent enough to reveal bare wires. In this case, the silver wire generally has a positive polarity and the copper wire has a negative polarity.
If you take a standard battery and place the end of a plug on the speaker and the negative end on the other side of the speaker, the cone will rise or fall (regardless of direction, as long as the 4 is in the same direction).
It doesn’t matter what polarity the speakers are connected to as long as they are all connected to the same polarity. Yes, if the polarity isn’t the same for both speakers in a stereo setup, you’ll get cancellations in the same spots between the speakers.
Normally, in electronics, earth is just a name we give at some point in the circuit. In a single battery circuit (with one positive terminal and one negative terminal) we usually refer to the negative terminal as ground.
This happens when the hot and neutral wires are reversed on an outlet or in front of an outlet. Reverse polarity carries the potential for electric shock, but is usually an easy repair. This wire is often called a neutral wire and should always be white.
The neutral conductor is grounded on the electrical panel, which is connected to the physical ground nearby. If you change the direct line and leave it neutral, the whole unit has neutral potential. However, things do happen, and by switching to neutrality instead of warm, you have removed a level of security.
But here’s the problem: If you connect the circuit wires to the wrong terminals on a socket, the socket will still work but the polarity will be reversed. In this case, for example, a lamp is powered by the shell of the bulb and not by the small pin in the lamp holder.
If one of the connecting cables is still hot, the switch is not turned on. If one of the light bulb wires is still hot with the switch off, you probably have the light switch on the neutral wire. Separate the shiny ends of the cables so you can safely turn the device back on.
If the switch has a LINE mark, the hot wire will still go there. The other port is LOAD, to which the load (i.e. the lamp) is connected. The charging cable may have red electrical tape to distinguish it.
Place the black end of the multimeter lead on the bare metal end of a white lead and read the meter. When you get an announcement, the black wire is hot, otherwise the black wire is not hot.
| 4 answers. The grooved, grooved or grooved side is grounded (neutral), the smooth side is hollowed (warm). The silver conductor is grounded (neutral), the copper conductor is not grounded (hot).
In most modern lights, the neutral wire is white and the hot wire is red or black. In this case, the neutral is still somehow identified. In some cases there is a fine print on the cable box. In others, there are small ridges or gaps on the insulation.
The one with the back is neutral and goes well with white. The smooth one is the hottest and connects to the black wire.
The neutral conductor is the one with the markings. The wire with the pintuck or ribbon is neutral and the other is warm. If you don’t see any marks on the wires and the connector has two pins of the same size, the wire is not polarized.
This happens when the hot and neutral wires are reversed on an outlet or in front of an outlet. Reverse polarity creates the risk of electric shock, but is usually an easy repair. This wire is often called a neutral wire and should always be white.