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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

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13y ago

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When a switch in an electrical circuit is turned off what will happen?

Closing a switch in an electrical circuit will complete the circuit. The supply voltage will then be applied to that circuit, and current will flow through that circuit.


What happens to an electric current at a light switch?

When an electrical switch is in the off position, the circuit is interrupted. When the switch is on, the circuit is open and complete.


What are you doing to the electrical circuit in your radio when you turn the radio off and on?

When you turn your radio on and off, you are simply flicking the switch in the circuit, the same as any circuit with a switch in it. When you turn it on, the switch completes the circuit, and current can flow around the circuit.


What are you doing to the electrical circuit in your radio when you turn the radio on and off?

When you turn your radio on and off, you are simply flicking the switch in the circuit, the same as any circuit with a switch in it. When you turn it on, the switch completes the circuit, and current can flow around the circuit.


Can a switch in the off position cause electrical short circuit?

No, once the switch is turned off the circuit is de energized. A de energized circuit can not be shorted out to create a fault.


What happened when you turned on the switch of the light?

A switch is placed in an electrical circuit in order to place a gap when the switch is off, so the circuit is broken. When the switch is on, the circuit is complete and the electricity can flow round the circuit.


The functions of switch?

A switch turns on or off electrical power flowing through a cable or circuit.


When the switch is closed it means that?

There is a complete path for the electricity to flow. The opposite of an open circuit. If a light switch is on and the light comes on, the circuit is closed. If the switch is turned off, the light goes off because the circuit is open.


What is a open switch circuit?

An open switch circuit is a circuit where the switch is in the "off" position or where the circuit is not complete, preventing the flow of electricity through the circuit. This results in no current flowing and no electrical devices being powered or functioning.


How are electrical current and circuits related?

Electrical currents require a circuit to flow. If the circuit is broken, then the electrical current will not flow. A switch is a prime example of this principle. When a switch is off, the circuit is broken. However, when it is turned, the circuit is completed and allows for the electrical current to flow through the appliance.


What is happening when you turn an electric circuit off?

When you switch off an electrical circuit you tend to create a 'break' in the circuit, preventing the electric current to flow around the circuit, this can be caused by a simple switch or a break in the circuit, e.g a disconnected wire.


Is an on off switch a resistor?

No, an on/off switch is not a resistor. An on/off switch is a mechanical device that controls the flow of electrical current by either completing (on) or breaking (off) the circuit. A resistor, on the other hand, is a component that limits the flow of electrical current and dissipates energy as heat, serving a different function in a circuit.

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