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What is the net power absorbed by each c...

What is the net power absorbed by each circuit over a complete cycle. Explain your answer.

Text Solution

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`P = E_(v) I_(v) cos phi`
In a pure inductor, phase difference between alternating voltage and current is `phi = 90^(@)`
`:. P = E_(v) I_(v) cos 90^(@) =` Zero.
In Q.4 `P = E_(v) I_(v) cos phi`
In a pure capacitor, phase difference between alternating voltage and current is `phi = 90^(@)`
`:. P = E_(v) I_(v) cos 90^(@) =` Zero
Infact, in both the cases, power spent in one half cycle is retrieved in hte other half cycle.
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