Assertion (A) : No net power is consumed by a conductor in half cycle.
Reason (R): Average power consumed per cycle in an inductor connected to an AC source is 0.

Options

A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false and R is also false

Answer

A

Explanation

During the first quarter of each current cycle as the current increases the magnetic flux through the inductor builds up and energy is stored in an inductor from the external source. In next quarter of cycle as the current decreases the flux increases and the stored energy is returned to the source.