9.
An alternating current of frequency f is flowing through an ideal choke coil of self inductance L. If V° and I ° be the peak values of the voltage and current, find the average power consumed, if any, by the choke coil.
For a clock coil R > > WL,
Power factor, cos ![straight ϕ space equals space straight R over ωL space equals space 0](/application/zrc/images/qvar/IPHEN12113982.png)
Average power, Veff . Ieff . cos ![straight ϕ](/application/zrc/images/qvar/IPHEN12113982-1.png)
Average power = 0
Therefore,
Pav = 0
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