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This is not a cut and dry answer as it depends on the application. 240v only needs two wires to operate with a green (ground) for safety. Single phase (residential) 240 wires are generally black and red (or a red tracer), but the National Electric Code does not stipulate the colors (as long as they are not green or white). Three phase colors are generally black, red, and blue and also require a green ground (as does EVERY electrical application). The white wire is a grounded conductor. It is only used in 110v applications. For 240v home appliances such as ranges or dryers, 110v is required for the controls so the cable would contain a green (or bare) ground, a white (for the 110v, and a black and red for the 240v. Things like water heaters that don't require control voltage don't need the white wire.
Pinky
What else can I help you with?
What does it mean when the circuit tester light does not come on when touching the black and white wires?
If the circuit tester light does not come on when touching the black and white wires, it usually means that there is no voltage present in the circuit. This could be due to a tripped circuit breaker, a disconnected wire, or a faulty connection. It is important to troubleshoot the circuit to identify and rectify the issue before proceeding further.
What is the red wire and what wire does it go with when there are three wires black red and white?
Red, white, and black are standard for a three-way switch (you have two switches that control the same fixture). You should also have a ground wire (copper, unsheathed). The black and red are negative, while the white is positive. It works pretty simply. When the switch is up, the black and white are linked, creating a circuit. When it is down, the red and white are linked. If both switches agree (both are red/white or both are black/white), then the circuit is completed and power flows.
Are black dwarfs a solid liquid or a gas?
None of the above. White dwarfs and the black dwarfs they will become consist of a unique state of matter called electron degenerate matter.
On a 110 voltage circuit where the white wire is common the black wire is normally?
The voltage potential supplying conductor.
You want to install a new light fixture in your bathroom upon removing the old fixture down you discover there is no grounding wire only a black and white wire and GFCI outlet on the circuit?
If there is no grounding wire present, you can still install the new light fixture using just the black and white wires. Make sure to connect the black wire to the live wire on the fixture and the white wire to the neutral wire. Since there is a GFCI outlet on the circuit, this will provide some level of shock protection in case of any electrical faults.
What is the color of the wires in the electrical circuit: green, black, and white?
The color of the wires in the electrical circuit are green, black, and white.
What is the correct order of connecting the red, black, and white wires in an electrical circuit?
The correct order for connecting the red, black, and white wires in an electrical circuit is typically red to black to white.
What is the correct order of connecting the red, white, black, and green wires in a circuit?
The correct order of connecting the red, white, black, and green wires in a circuit is typically red to black, white to green.
What colour is what in the yin and yang?
Ying and yang consist of two shades, black and white.
Is the black or white wire hot in this electrical circuit?
In an electrical circuit, the black wire is typically the hot wire.
Are both the black and white wires considered hot in this electrical circuit?
In an electrical circuit, both the black and white wires can be considered hot depending on the wiring configuration.
Is the black wire or the white wire considered hot in this electrical circuit?
In an electrical circuit, the black wire is typically considered hot.
Is the white wire or the black wire considered hot in this electrical circuit?
In an electrical circuit, the black wire is typically considered hot.
What is the proper way to connect white, black, and green wires in an electrical circuit?
To properly connect white, black, and green wires in an electrical circuit, you should match the white wire to the neutral terminal, the black wire to the hot terminal, and the green wire to the ground terminal. This ensures the safe and effective flow of electricity in the circuit.
Is the black and white wire both hot in this electrical circuit?
In an electrical circuit, the black wire is typically the hot wire, while the white wire is the neutral wire. Both wires can carry electricity, but the black wire is the one that carries the current to the device, while the white wire completes the circuit by returning the current to the source.
What colors are Asia tigers?
Normally tiger consist of the colors orange,white,or black with black stripes (black one has white stripes). But asian tigers are normally orange and black! :) -wolf-gal10
Why does disneychannel mostly consist of white actors?
and they can have black actors or maybe they put makeup in there face
