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Figure below shows a capacitor C, an ind...

Figure below shows a capacitor C, an inductor L and a resistor R, connected in series to an a.c. supply of 220 V.

Average power consumed by the circuit.

Text Solution

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Average power consumed `E_(rms)xxi_(rms)xx cos phi`
But`"cos" phi=(R)/(Z)`
`=(R)/(100)` [ At reasonant frequency]
`=(100)/(100)=1`
`:.` Average power consumed `=E_(rms)xxi_(rms)xx1`
`=220xx2.20xx1`
`=484W`.
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