Question

(a). An alternating voltage V = Vm sin wt applied

to a series LCR circuit drives a current given by

i =im sin (wt + f). Deduce an expression for the

average power dissipated over a cycle.

(b) For circuits used for transporting electric

power, a low power factor implies large power

loss in transmission. Explain.

(c) Determine the current and quality factor

at resonance for a series LCR circuit with

L = 1.00 mH, 1.00 nF and R =100 W connected to

an ac source having peak voltage of 100 V.

Answer 1

Answer:

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