Which of the following device can be used to open or close an electric circuit to regulate the flow of current?

switch

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Electric Cell

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Bulb

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Electromagnet

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Solution

The correct option is A
switch

A switch prevents or allows current to flow through it. It is a device for making and breaking connections in an electric circuit. For example, when anyone presses the button (switch) for light/fan when he/she enters a room.

Suggest Corrections

1.	An unbroken path through which electric current can flow	.....................
2.	A very thin wire made of a special material (such as tungsten) which glows in a bulb	.....................
3.	Tightly wound coils found in appliances which heat up	.....................
4.	A safety device used to prevent an over flow of electric current	.....................
5.	A device used to open or close an electric current	.....................