Is the black wire with white stripe positive or negative?
If both wires are black but one has a white stripe, the striped wire is negative, while the plain black wire is positive.
What does A and B mean on car speakers?
1-3 of 3 Answers. You may play music/sound on either channel A (one set of speakers hooked up to A), channel B (second set of speakers) or both A and B at the same time. I may select one or the other or both to play sound at the same time. Hoping this helps.
What is positive and negative on a subwoofer?
So when the positive signal goes to the speaker, it pushes the subwoofer forward. When the signal sent is negative, the subwoofer pulls backward. When two woofers are mounted in the same enclosure and one woofer is inverted, you would need to wire it “Out of Phase” in order to make the sub perform correctly.
What color speaker wires go together?
The color code for four-conductor wire is speaker one: Red (positive), Black (negative) speaker two: White (positive), Green (negative). Its purpose is to carry an electrical signal (voltage and current) from the amplifier (or the amplifier section of a receiver) to the speakers.
Does it matter which wire goes where on a lamp?
With a switch loop yes, it should. The hot wire should come down from the ceiling on the white wire and go back up on the black wire. Just think ‘white down, black up’. If you wired it the other way around, hot black down and hot white up, you have a problem.
What happens if you wire a light fixture backwards?
Tip. The fixture still works if you reverse the wires, but the socket sleeve will be hot, and anyone who touches it while changing a bulb can get a shock. When wired correctly, the socket sleeve is neutral and only the small metal tab at the base of the socket is hot.
What if I have two black wires?
Black means hot, white signifies neutral, and green indicates ground. However, if you need to rewire a light switch or a plug socket, you may occasionally come across two black wires. It’s essential that you determine which black wire is hot before proceeding.
What happens if you reverse live and neutral?
If your outlet’s polarity is reversed, it means that the neutral wire is connected to where the hot wire is supposed to be. This may not sound like a terrible thing, but it is. There is always electricity flowing out of an outlet with reversed polarity, even if an appliance is supposed to be off.