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Why is there continuity between ground and the hot wire on a light switch?
Wiki User
∙ 13y ago
There isn't, unless you have a damaged switch.
Wiki User
∙ 13y ago
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How do you dead test a lighting circuit?
disconnect the supply cable from cu and join the phase and neutral together then go to ur light switch and provided that he circuit is complete with ur bulbs in do a continuity test on the switch cable live in and switch live out these should beep out if the circuit is comple meaning there will be continuity at the switchh cables
What does the on and off switch do on an electrical circuit?
When you turn It off it breaks the circuit. When it is turned on it closes the circuit. To have a light bulb turn on it need to have continuity. Hope that helps
Why does light appears when you flick the switch?
Operating the switch completes the circuit between the power source and the bulb.
Light switch has 4 wire colors red and white and green and black which is the hot wire?
You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.
How do you wire an additional light to another light with a switch?
In the wall switch box you should have a white and black pair from your source of power (120 volts). The other pair of black and white wires from the wall box should be going to the light fixture junction box. With the power off, connect the two white wires together with a wire nut. Connect the two bare copper ground wires together making sure that at least one of the ground wires goes under the green screw in the switch junction box. Turn the switch to the off position, no little indicator bump showing on the switch toggle lever. Now take the black incoming hot wire and put it under the top screw on the switch. Hot wires always go to the top of switches. Now put the black wire that is going to the light fixture under the bottom screw. Tighten both. Install the switch into the wall box with the switch handle in the down position. All switches when installed must be off in the down position. Install the switch plate cover.
What does it mean when the circuit is opened?
Its means there is no continuity between point Ato point B. Ex. A light switch : When the switch is off it opens the circuit and electricity does not get to the light, when the switch is on the circuit is closed and the light will turn on.
How do you check a brake switch How do you know if its bad?
Put a test light or a an ohm meter between the two leads. Push in or out depending on what kind of brake switch you have. If the ohm meter shows continuity or the test light lights up the switch is all right.
What would happen if a wire is cut between the wall switch and ceiling light?
The light wouldn't go on unless just the neutral was cut and there was a separate ground.
How can you check if a power window switch is good?
use a continuity tester on the switch itself just hold contacts on tester to contacts on switch and if it reads with a beep or a light your switch is good pending the tester is accurate
What is wrong if the stoplights don't work but the tail lights and rear signal lights work and the stop light light bulbs have been replaced and the fuses checked?
brake light switch bad check for continuity at the fuse then the switch, but yeah bad switch. Kongkit Raggan-Supatanampon
How do you dead test a lighting circuit?
disconnect the supply cable from cu and join the phase and neutral together then go to ur light switch and provided that he circuit is complete with ur bulbs in do a continuity test on the switch cable live in and switch live out these should beep out if the circuit is comple meaning there will be continuity at the switchh cables
58 Buick dome light diagram?
I cannot provide a diagram, but it is simple. Power goes to the light, and the ground wire is use as an interupter on the door switch. The switch breaks the ground connection when the door is shut. So you should have power at the dome light if you just ground the circuit.
My 1998 Yukon won't crank no light for gear position indicator. If you connect a continuity light to either the 8 fuse or to the yellow wire with the black stripe comung off the ignition switch the r?
change the ignition starter switch
Where is the cold side of the stoplight switch on a 2005 Chevy silverado?
Use a test light to determine Connect to ground and one side of the switch - if the light illuminates that is the HOT side if light does not illuminate that is the COLD side of switch
Interior lights out not a fuse?
could be a bad ground or a short to ground possibly bad switch or the light bulb
You have an outside light that won't work but switch has power?
First and foremost make sure the light bulb is a good one. Try it in another fixture to make sure, even if it just came out of the box it was packed in. If you have checked the switch for power then you must have a tester. The power coming to the switch will most likely be on the top screw. Turn the switch on and see if you have voltage on the bottom screw. Check this voltage from the screws to the ground wire as the neutral will not be accessible in the back of the switch box. If there is voltage to the bottom screw then move on to the light fixture. Remove the outside light fixture and see if you get a voltage reading on the incoming hot (black ) wire. If there is voltage there then you have to see if the lamp holder is making continuity. If you have an ohm meter or a continuity meter remove the lamp fixture from the "hot" wire and the neutral connection and see if you get a reading across the fixtures black and white wire. This has to be tested with the bulb in the fixture. No continuity reading then there is trouble with the socket. Might be time to think about a new fixture.
What does the on and off switch do on an electrical circuit?
When you turn It off it breaks the circuit. When it is turned on it closes the circuit. To have a light bulb turn on it need to have continuity. Hope that helps
