Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The average power dissipated in a pure inductor of inductance 
when an ac current is passing through it, is
A
B
C
D
Zero
Text Solution
Verified by ExpertsThe correct answer is:
D
In a pure inductor, the current lags the voltage by 90 degrees. The power dissipated in an AC circuit is given by the formula:
P = VI imes ext{cos}( heta).
For a pure inductor, the phase angle (θ) is 90 degrees, and cos(90°) = 0. Therefore, the average power dissipated is:
P = VI imes 0 = 0.
Hence, for a pure inductor, the average power dissipated is zero.
P = VI imes ext{cos}( heta).
For a pure inductor, the phase angle (θ) is 90 degrees, and cos(90°) = 0. Therefore, the average power dissipated is:
P = VI imes 0 = 0.
Hence, for a pure inductor, the average power dissipated is zero.
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