Question

Average power generated in an inductor connected to an a.c. source is
(a) \frac{1}{2}LI²
(b) LI²
(c) zero
(d) none of these

Answer 1

Answer:

c) zero

Average power dissipated is given by :

$\boxed{\frac{(Eo)(Io)}{2} cos(\theta )}$

Since the phase difference between voltage and current is π/2, i.e current lags voltage by phase difference (Θ) π/2

∴ Average power is 0

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