RC Circuits - Technical MCQs

Q1:

As frequency increases

A both series and parallel RC impedance decrease

B series RC impedance decreases and parallel RC impedance increases

C series RC impedance increases and parallel RC impedance decreases

D both series and parallel RC impedance increase

ANS:A - both series and parallel RC impedance decrease

Because xc(capacitor resistance )=1/j2pif

So as f increases xc decreases and series and parallel combination of resistance and capacitive reactance decreases