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In an a.c. circuit, there is no power co...

In an a.c. circuit, there is no power consumption in an ideal inductor. Explain.

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Average power/cycle in an a.c circuit is
`P = E_(v) I_(v) cos phi`
In an ideal inductor,which has no ohmic resistance, phase angle `phi = 90^(@)`
`:. P = E_(v) I_(v) cos 90^(@) = ` Zero.
Infact, power supplied during growth of current is retrieved during decay of current through ideal inductor.
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