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black wire is hot wire .And the white is the common or white is ground. Depends on what your talking about in an outlet or car battery. In a outlet the ground wire is green or bare copper. neutral is red and hot is black (I remember it by hot can kill you so black is death) if I am not mistaken. As for a car battery i think it's the opposite red is hot and black is neutral.
What else can I help you with?
How do you hook up ele plug in wires coming in to house the plug has white black and ground wires and the wire from the house has white black red and ground hooked to a 30amp fuse?
You will have to check to make sure. Normally, with 4 wires, the black and red are both power for 220. White for neutral and bare for ground. If you are only using one leg of it, you would use the black, white, bare ones and cap the red one. Someone may have used the 4 strand because they had it or 220 was planned but not done or both the red and black are hot. You should be able to tell in the panel. Do the red and black both connect to separate breakers or to one or is the red not connected?
If there are two black and one white wire in ceiling light do I need to use both black for the switch to work?
If there are two black wires, it's possible that it was wired for a ceiling fan and that one of the wires is for the fan part while the other is for the light part. If so, one of the black wires may be switched while the other is always "on." Normally black is "hot" and white is "neutral" (NOT ground... ground is usually green).
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.
Is it normal to read 120v on black and white AND black and ground?
It is normal to measure 120 volts from black (hot) to white (neutral), and it is normal to also measure 120 volts from black (hot) to bare (ground). While the hot wire stands alone, the neutral and ground wires are tied together at the service entrance -- so either one can serve as reference for making a measurement to the hot 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.
If you have an air solenoid valve DC and the wires are Green Black and White. Which one is positive and negative?
Green= Ground Black = live White = Neutral
How do you hook up ele plug in wires coming in to house the plug has white black and ground wires and the wire from the house has white black red and ground hooked to a 30amp fuse?
You will have to check to make sure. Normally, with 4 wires, the black and red are both power for 220. White for neutral and bare for ground. If you are only using one leg of it, you would use the black, white, bare ones and cap the red one. Someone may have used the 4 strand because they had it or 220 was planned but not done or both the red and black are hot. You should be able to tell in the panel. Do the red and black both connect to separate breakers or to one or is the red not connected?
If there are two black and one white wire in ceiling light do I need to use both black for the switch to work?
If there are two black wires, it's possible that it was wired for a ceiling fan and that one of the wires is for the fan part while the other is for the light part. If so, one of the black wires may be switched while the other is always "on." Normally black is "hot" and white is "neutral" (NOT ground... ground is usually green).
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.
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 it normal to read 120v on black and white AND black and ground?
It is normal to measure 120 volts from black (hot) to white (neutral), and it is normal to also measure 120 volts from black (hot) to bare (ground). While the hot wire stands alone, the neutral and ground wires are tied together at the service entrance -- so either one can serve as reference for making a measurement to the hot 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.
Do you connect both wires on a pull chain switch one to black one to white?
There should be two wires in the box, black and white and possibly a bare one depending on the age of the wiring in the house. The fixture has two screws on the base. One wire goes on each screw. If there are short wires on the fixture, black to black and white to white. If there is a bare ground wire in the house box, it attaches to the body of the fixture. If there is no ground screw on the fixture, do not worry about it.
Configuration for 50 amp dryer plug with black white and green wires?
For a 50 amp dryer plug with black, white, and green wires, connect the black wire to one of the hot terminals, the white wire to the neutral terminal, and the green wire to the ground terminal on the outlet. Make sure to follow all safety guidelines and use appropriate wiring techniques to ensure proper installation and functionality of the dryer.
How do you connect wire to a breaker?
There is 220 volts between the two poles. If you are running 2 wires (black and white) + ground then you hook black to one pole and white to the other. Put red or black electric tape on each end of the white wire and wrap around wire for 3 inches or so next to the connection so the next person will be able to see that the wire is hot and not a neutral.
If the old block heater cord of a 1988 Honda CRX had two wires and the new end has 3 which colored wires connect the new connector to the old one?
Connect to two wires you have to the the spade connectors and forget the ground connector. The spade connector wires should be black and white. Black to gold and white to silver. If the wires coming from the heater happen to be red and white, then red goes to black. You could buy a simple lamp cord which has only tow wires.
What is the 14/3 wiring diagram for this electrical circuit?
The 14/3 wiring diagram for an electrical circuit typically includes three 14-gauge wires: one black (hot), one red (hot), and one white (neutral), along with a ground wire. The black and red wires are used for carrying power, while the white wire is for the return path. The ground wire is for safety purposes.
