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Electric switch is very important because as you known that all the equipment we are using is useless without a switch. For example, if someone want to turn on its computer, it have to first on the switch without switching on the power supply is not gone in the equipment we using.

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Reanna Von

Lvl 10
3y ago

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for rooms with two entrances, you don't have to cross a darkened room before turning on the light, or after turning it off.

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Jalen Gislason

Lvl 10
2y ago
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because it can break or complete the circuit.

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Wiki User

16y ago
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To control the current in the circuit.

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Wiki User

12y ago
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To stop and start the current flow.

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Wiki User

15y ago
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Q: Why is an switch important in a circuit?
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