Pick the safety device used in domestic electric circuits.

Battery

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MCB

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CFL

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Switch

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Solution

The correct option is B MCB
In domestic electric circuits, MCB is the safest circuit breaker. It automatically switches off the supply when there is overloading or short circuit. Overloading and short circuit cause flow of excessive current in the circuit and it may lead to fire accident.

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A safety device in an electric circuit

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