A) \[\frac{1}{2}L{{I}^{2}}\]
B) \[2\,L{{I}^{2}}\]
C) \[\frac{1}{4}\,L{{I}^{2}}\]
D) zero
Correct Answer: D
Solution :
The average of instantaneous power in an AC circuit over a fuel cycle is called average power. Its unit is watt. \[{{P}_{av}}={{V}_{rms}}\cdot {{I}_{rms}}\cdot \cos \phi \] In pure inductance, phase difference between voltage and current \[\phi =90{}^\circ \] Power factor cos\[\phi =0\] Power \[P=0\]
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