RC Circuits

Calculate the phase angle in the given circuit.

A 0°

B 90°

C 22.52°

D 67.48°

ANS:D - 67.48°

Phase angle= tan^(-1)(Xc/R).
To get the Reactance(Xc):
Xc= 1/2*pifC
= 1/(2*pi*20kHz*0.33pF)
= 24114385.32
Then,
(Xc/R) = 2.41266.
Phase angle = tan^(-1)*2.41266= 67.48 deg (set your calcu on deg mode)

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