Alternating CurrentMedium
Question
Which of the following quantities have zero average value over a cycle. If an inductor coil having some resistance is connected to an sinusoidal AC source.
Options
A.induced emf in the inductor
B.current
C.joule heat
D.magnetic energy stored in the inductor
Solution
Joule heat I2rms R
Energy in inducting coil 1/2 = LI2rms .
Energy in inducting coil 1/2 = LI2rms .
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