is connected to a
230 V variable frequency supply.
(a)
What is the source frequency for which current amplitude is maximum. Obtain
this maximum value.
(b)
What is the source frequency for which average power absorbed by the circuit is
maximum. Obtain the value of this maximum power.
(c)
For which frequencies of the source is the power transferred to the circuit
half the power at resonant frequency? What is the current amplitude at these
frequencies?
(d)
What is the Q-factor of the given circuit?
Answer:
a) 
=
14.14 A.
(b)
(c)
i.e.
Thus
power absorbed is half at 
i.e. 684 Hz and
678 Hz
Current
amplitude 
=
10 A
(d)
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