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RC Circuits - Engineering

Q1:

The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency

A must be increased

B must be decreased

C is held constant

D has no effect

ANS:B - must be decreased

V = iXc.
Xc = 1/(2*pi*f*c).

So, voltage is inversely proportional to the frequency.
If increase the voltage then frequency should be decreases.