There could be a series of problems. First, are all the wires hooked up? Is the bulb burned out? Is it just the switch that is not working? You should go and put in a new bulb, and see if it was just burned out.
wiring diagram of one bulb in two switches.. example, if switch a- on then switch b- off the bulb is on, switch a- off then switch b- on the bulb is on, switch a- on then switch b- on the bulb is off, switch a- off then switch b- off the bulb is off..
You turn on two switches wait 5 min. and turn one of the switches off! go in the next room the cold one belongs to the switch you never turned on..the warm one the switch you only left on 5 min and the lite one to the switch that is turned on! you switch on one switch for a few minutes, one for ages, and dont turn the other one on at all. you go through to the other room, the bulb that is warm is operated by the first switch, the roasting hot bulb (that would burn your hand) is operated by the second switch, and the cold bulb is operated by the third switch.
It is dependant on whether the switches are in wired in a parallel or series configuration. If the switches are wires in parallel then both switches would have to be off to turn the light bulb off. Either switch could turn the light bulb on. If the switches are wired in series then both switches would have to be on to turn the light bulb on. Either switch could turn the light bulb off.
Turn on one of the switches and leave it on for a few minutes. Then turn it off and turn on another switch. Proceed upstairs and touch the light bulb. The bulb that is warm corresponds to the switch you turned on first, and the bulb that is off and not warm corresponds to the switch you turned on second.
The on and off switch controls the flow of electricity in the circuit. When the switch is on, it completes the circuit and allows electricity to flow through. When the switch is off, it breaks the circuit and stops the flow of electricity.
wiring diagram of one bulb in two switches.. example, if switch a- on then switch b- off the bulb is on, switch a- off then switch b- on the bulb is on, switch a- on then switch b- on the bulb is off, switch a- off then switch b- off the bulb is off..
When the light bulb stays on when the switch is off, it is likely due to a wiring issue or a faulty switch that is not properly cutting off the electricity flow to the bulb.
Switch
It is a safety concern. With the switch before the bulb, the bulb is completely isolated from the potential source when the switch is turned off. With the switch behind the bulb, even if the switch is turned off, the potential source is still at the bulb. If any of these lamp holder parts touch the ground when removing the bulb the circuit will short out and trip the breaker. If you are grounded and touch any of the lamp holder parts you will get a nasty shock.
Say it is a power circuit, a light bulb is bright from the battery, flowing through the wires and the light bulb. There is a switch controling the power that goes through, so if you switched the off switch off, the power will no longer be flowing through(the light bulb wouldn't be bright any longer). Say it is a power circuit, a light bulb is bright from the battery, flowing through the wires and the light bulb. There is a switch controling the power that goes through, so if you switched the off switch off, the power will no longer be flowing through(the light bulb wouldn't be bright any longer).
If the switch is in the off position, the circuit will be broken and the electric current can't flow to the bulb, so the bulb will not light up.
switch lights off
because you are switch the hot leg, so it can be turn on an off.
The simplist answers is that electricity needs to complete a circuit fully. It stops flowing because there is no complete circuit. The switch is a device for opening and closing the circuit. When the switch is in the off position the circuit is said to be open and electricity cannot flow.
The switch in a torch controls the flow of electricity to the light bulb. When the switch is turned on, it completes the circuit and allows the electricity to pass through, lighting up the bulb. Turning the switch off breaks the circuit, stopping the flow of electricity and turning off the light.
Turning off the switch disconnects the electrical circuit, stopping the flow of electricity to the flashlight's bulb. As a result, the bulb stops emitting light and the flashlight no longer functions until the switch is turned back on.
To control a wireless light bulb with a switch, you can use a smart light bulb that is compatible with a smart home system or a wireless light bulb kit. Install the smart light bulb in the light fixture and connect it to the wireless network. Then, use a smart switch or a smartphone app to turn the light bulb on and off wirelessly.