capacitor in series
is connected to a 230 V, 50 Hz supply. The resistance of the circuit is
negligible.
(a)
Obtain the current amplitude and rms values.
(b)
Obtain the rms values of potential drops across each element.
(c)
What is the average power transferred to the inductor?
(d)
What is the average power transferred to the capacitor?
(e)
What is the total average power absorbed by the circuit? [?Average? implies
?averaged over one cycle?.]
Answer:
(a) 
Here
Using
these values
(b)
(c)
Here 
because current
lags voltage by 
in the case of an
inductor
(d)
Here because current
lags voltage by in the case of a
capacitor.
(e)
Total average power absorbed = 0.
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