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To determine which wire is hot when both wires are black, you can use a voltage tester or a multimeter to check for voltage. The wire that shows a voltage reading is the hot wire. Make sure to follow proper safety precautions when working with electrical wires.

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AnswerBot

6mo ago

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Which is the hot wire if there are both black and red wires?

The hot wire could be either the black or red wire, as both are commonly used for hot wires in electrical wiring. It's important to use a voltage tester to determine which is carrying the current before working on the wires.


If both wires for a ceiling light fixture are black how do you tell which is the live wire and which is neutral?

If both wires are black, the one that connects to your white wire is the one that should have little writing on it. Black to the plain black wire, white to the wire with writing.


My light fixture has writing on one wire but not the other?

If both wires are black then the one with the writing is the neutral wire. If the two wires are black and white then the white one is the neutral.


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.


How do you splice a cord with white and black wires to a cord with red green black and white wires?

To splice a cord with white and black wires to a cord with red, green, black, and white wires, first ensure that both cords are unplugged and safe to work with. Connect the black wire from the first cord to the black wire from the second cord (which is typically the hot wire). Connect the white wire to the white wire (the neutral), and if applicable, connect the green wire (ground) to the ground wire (if present). The red wire is often used for a second hot wire or switch leg; ensure it is capped off safely if not in use. Always use electrical tape or wire connectors to secure the connections and ensure safety.


What does it mean when there are two black wires in an eletcric box when changing a light?

Some light fixtures do not have a grounding wire. In such cases the two wire going to the light may both be black. You can connect black supply to either black light wire and white supply to the other black wire.


How do you install a swag kit with two wires to a light with three wires?

You will first need to determine which wire is the hot wire in the ceiling box. Connect the swag kit's two wires to the hot wire and the neutral wire in the ceiling box, leaving the third wire unconnected. Ensure all connections are secure and insulated. You may need to consult a professional electrician if you are unsure about the wiring.


How do you wire two outside light sensing motion porch lights that are controlled from one switch with each light having a white black ground and optional red wire?

Connect the black wire from the switch to the black wires of both lights. Connect the white wires together. Connect the red wire, if used for the motion sensor, to the black wires on the lights. Connect all ground wires together and to the ground terminal on the switch. Make sure to turn off power before connecting any wires for safety.


Can you connect light fixture wires that are black white and ground to house wires that are red white and ground?

Yes, you can connect the light fixture wires to the house wires by matching the colors appropriately. The black wire from the fixture should connect to the red wire from the house, as both typically serve as "hot" wires. The white wire from the fixture should connect to the white wire from the house, which is the neutral. Finally, connect the ground wires (bare or green) together to ensure proper grounding.


Should grooved wire be connected to white wire?

If you are referring to lamp cord type wire where both wires are brown then yes, connect the wire with the groves to the white neutral and the smooth wire to the black hot wire.


Should you attach the ground wire to the black wires?

No, the ground wire should be attached to the green or bare copper wire. The black wires are typically live or hot wires and should never be connected to the ground wire.


What if your light switch has four wires two white and two black. Which one would be the hot wire and would two be the grounds?

One set, one white and one black are the power and ground coming in. The other set goes to the light. Probably, the one in the bottom of the switch box is the power in. In this case, it really doesn't matter. If you break the black wires, the light should work. Tie the two white together and connect 1 black to each terminal on the switch. White or ground goes to the light, black will feed through the switch either way and complete the circuit.

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