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Why does a light bulb light up immediately after you turn on a switch even if the switch was a long way from the bulb?
Wiki User
∙ 13y ago
The light will come on instantly (incandecent bulbs only), because current travels faster than the speed of light (theory).
Wiki User
∙ 13y ago
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If a light bulb is burned out and the switch is on are you still using electricity?
A standard filament bulb works on the principle that it gets hot and glows when a current is passed through it. If the filament has burned out (blown) it is open circuit and no current can flow. Therefore you are not using any electricity even if the switch is still on It may still use power if it is a lighted switch. Find a licensed electrician at www.contraxtor.com
Why it is possible to light the bulb even though only one wire is used?
its the light was not appeared but not all are us a bulb to have possible to the light when it is open they conssume to another part that they..
How much electricity use a light bulb -100W- in moment when you TURN ON the light switch?
Less than 0.02 watt/hours. Running your 100w bulb for an hour uses 100 watt/hours. The inrush current during the cold resistance of the bulb lasts for only a millisecond before the bulb is hot. This is insignificant on your electric bill even if you sat and flicked the lightswitch for the whole month, and is a common misconception that someone who didn't know what they were talking about made up.
What uses more electricity a lit light bulb or an empty socket of the same rating switched on?
When the bulb is lit it uses energy. When there is no bulb, no energy is used even if it is switched on.
Is it normal for tester to show hot on a light switch with it in the off position and no power going to the light it controls?
Yes. Even with no power to the light, there is still power to the switch. To power off the switch you usually need to open a circuit breaker.
Does electricity flow through a light when the light is turned off?
The OFF position on the light switch interrupts the flow of electricity to the light bulb. If the switch is ON, there is always electricity at the light socket, even when the light bulb is removed. if the lamp is still pluged in electricity is still flowing through the lamp even if it is off or on
Could a bad ignition switch on a 1995 Harley softail custom prevent the brake light from coming on even though the tail light is on?
Try checking the bulb, the brake light bulb may be blown.
My halo light on 00 dodge ram for the key switch doesn't light up even though the bulb has been replace?
If the bulb has been replaced then there could only be one solution. The fuse for the light is blown or has become loose.
What is an example of a circuit?
A connection from a power source, through a load and a return back to the power source. <><><> An example: electricity is supplied to the light switch on the wall through an insulated copper wire, even though the switch is in the off position electricity is present. There is another insulated copper wire going to the light bulb. When you flip the switch the circuit is completed and the light bulb comes on.
How does removing a bulb or opening and closing the switch affect a parallel circuit?
it is because the energy flows through the switch and it makes the light bulb turn on and if the switch is open the energy will not flow it will stay in the place the switch begins
What are some examples of a closed circuit?
A connection from a power source, through a load and a return back to the power source. <><><> An example: electricity is supplied to the light switch on the wall through an insulated copper wire, even though the switch is in the off position electricity is present. There is another insulated copper wire going to the light bulb. When you flip the switch the circuit is completed and the light bulb comes on.
A wiring diagram for the 96 ford escort lx your brake light won't work even though the same bulb works for the tail lightplease help?
brake light switch is bad
If a light bulb is burned out and the switch is on are you still using electricity?
A standard filament bulb works on the principle that it gets hot and glows when a current is passed through it. If the filament has burned out (blown) it is open circuit and no current can flow. Therefore you are not using any electricity even if the switch is still on It may still use power if it is a lighted switch. Find a licensed electrician at www.contraxtor.com
Where is Thomas Edison's light bulb?
Thomas Edison's light bulb burned for a number of years even after his death. The light bulb is currently located at the Menlo Park Museum.
What is the difference if a switch is before or after a bulb in a circuit?
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.
Does a light bulb convert light in to chemical energy?
No a light bulb does not use chemical energy. Even though it uses the chemical mercury to create light. Hope this helps =)
How do you get a light bulb over your nintendog's head?
When you are teaching your nintendog a trick, the light bulb will appear a few times.Hint: If you touch the light bulb with your stylus, you can move it around and even feed it to your nintendog as a treat!
