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A series LCR circuit connected to a vari...

A series LCR circuit connected to a variable frequency 230 V source has L = 5.0 H, `C = 80 mu F`, `R = 40 Omega`, Fig.
(a) Determine the source frequency which drives the circuit in resonance.
(b) Obtain the impedance of the circuit and amplitude of current at at resonating frequency.
(c ) Determine the r.m.s. potential drops acorss the three elements the circuits. Show that the potential drop acorss the LC combination is zero at the resonating frequecny.

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