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Current begins to flow through the tungsten filament of the wire. Because of its high resistance, the wire heats up till the point that it starts glowing, producing light from the bulb.

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14y ago
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2y ago
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1mo ago

When the switch is turned on, electricity flows from the power source through the circuit and reaches the bulb. The electricity energizes the filament inside the bulb, causing it to heat up and produce light. This process continues as long as the switch remains on and there is a continuous flow of electricity.

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7y ago

I believe I would need more information about the circuit to answer the "why".

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11y ago

I think the bulb will light up

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Q: What happens to the bulb when the switch is on. why?
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What circuit do you need for two switches one bulb?

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..


What happens to the current through bulb 2 if the switch s is opened?

If switch S is opened, the current through bulb 2 will decrease and eventually stop flowing because the circuit is broken. Bulb 2 is connected in parallel to bulb 1 and both bulbs have the same voltage across them, so when the circuit is opened, current stops flowing through both bulbs.


Can you use g9 bulb on a dimmer switch?

It is generally not recommended to use a G9 bulb on a dimmer switch unless the bulb is specifically marked as dimmable. Using a non-dimmable bulb on a dimmer switch can cause flickering, buzzing, and even damage to the bulb or the dimmer switch. Always check the bulb packaging to ensure it is compatible with dimmer switches before using them together.


When the switch is closed which light bulb will light light bulb 1 2 or 3?

It depend on where the switch is located in the circuit.


What if your switch is on but the bulb is off?

If the switch is on but the bulb is off, there could be an issue with the bulb itself such as it being burned out or not screwed in properly. It could also be a problem with the wiring or the connection between the switch and the bulb. You may need to replace the bulb or check the wiring to troubleshoot the issue.

Related questions

What happens when you switch on an incandescent bulb?

The surrounding area adjacent to the light bulb becomes easier to see.


What happens when a bulb ammeter battery and switch are put connected together?

the bulb will glow and ammeter will show the reading


What happens when you flip a switch on a flashlight?

When you flip a switch on a flashlight, you complete an electrical circuit that allows a current to flow from the battery to the light bulb. This causes the light bulb to emit light and illuminate the surroundings.


If you unscrewed the second bulb in the series circuit when it was on explain what happens to the first?

Unscrewing any bulb in a series circuit turns them all off. This is the same as opening the switch that controls them.


What circuit do you need for two switches one bulb?

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..


Can you use g9 bulb on a dimmer switch?

It is generally not recommended to use a G9 bulb on a dimmer switch unless the bulb is specifically marked as dimmable. Using a non-dimmable bulb on a dimmer switch can cause flickering, buzzing, and even damage to the bulb or the dimmer switch. Always check the bulb packaging to ensure it is compatible with dimmer switches before using them together.


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.


What is the switch and the bulb in electricity?

A switch is used of stop the current flow in a circuit and the bulb can be classed as the load in a circuit.


How do you replace bulb on fan switch Toyota avensis?

How to change bulb behind switch of fan Toyota Avenses


When the switch is closed which light bulb will light light bulb 1 2 or 3?

It depend on where the switch is located in the circuit.


When you open the switch what happen to the bulb?

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.


What if your switch is on but the bulb is off?

If the switch is on but the bulb is off, there could be an issue with the bulb itself such as it being burned out or not screwed in properly. It could also be a problem with the wiring or the connection between the switch and the bulb. You may need to replace the bulb or check the wiring to troubleshoot the issue.