Which of these is an incorrect statement?

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A switch is a circuit's source of electric current.

A switch helps to complete or break the circuit.

A switch helps us to use electricity as per our requirement.

When the switch is open, there is an air gap between its terminal.

answer is A.

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Detailed Solution

An incorrect statement is that a switch is not a circuit's source of electric current.[46]
A switch is an electrical device that is used to open or close an electric circuit. It controls the flow of electricity in a circuit using an ON/OFF switch. As a result, it cannot be used as a source of electric current in a circuit. In a circuit, an electric cell or battery serves as a source.
When the electric switch is in the open position, an air gap forms between two terminals, breaking the circuit.

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