Question

Assertion (A): In a domestic circuit a fuse is placed ahead of switch in the live wire.

Reason (R): The arrangement cuts off the current in case the circuit is overloaded.

Options

• Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

• Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).

• Assertion (A) is false, but Reason (R) is true.

• Assertion (A) is true, but Reason (R) is false.

Answer 1

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

Explanation:

The fuse is connected in the live wire before the switch so that, if the circuit is overloaded, the fuse melts and immediately cuts off the supply. This protects the appliance and the user from excess current.