Question

Assertion (A): One watt is the electric power consumed when a current of 1A flows through a circuit having potential difference of 1 V.

Reason (R): One watt-hour (Wh) is the electrical energy consumed by an electrical appliance of power 1 W used for 1 h.

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 but Reason (R) is not the correct explanation of Assertion (A).

Explanation:

The assertion correctly defines one watt as the power when a current of 1 A flows at a potential difference of 1 V. The reason correctly defines one watt-hour as electrical energy, but it does not explain the definition of one watt.