# RC Circuits MCQ Questions & Answers

RC Circuits MCQs : This section focuses on the "RC Circuits". These Multiple Choice Questions (MCQs) should be practiced to improve the RC Circuits skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

The two most common RC filters are the high-pass filters and low-pass filters; band-pass filters and band-stop filters usually require RLC filters, though crude ones can be made with RC filters.

A. TRUE
B. FALSE

Question 2

Which statement about a series RC circuit is true?

A. The capacitor's voltage drop is in phase with the resistor's voltage drop.
B. The current leads the source voltage.
C. The current lags the source voltage.
D. The resistor voltage lags the current.

Question 3

Which of the following is the reference vector for parallel RC circuits?

A. R
B. V
C. I
D. XC

Question 4

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

Question 5

In a 20 Vac series RC circuit, if 20 V is read across the resistor and 40 V is measured across the capacitor, the applied voltage is

A. 45 Vac
B. 50 Vac
C. 60 Vac
D. 65 Vac

Question 6

Power that is measured in volt-amperes is called

A. impedance power
B. reactive power
C. true power
D. apparent power

Question 7

A resistor–capacitor circuit (RC circuit), or RC filter or RC network, is an electric circuit composed of resistors and capacitors

A. TRUE
B. FALSE

Question 8

What is the effect of increasing the resistance in a series RC circuit?

A. There will be no effect at all.
B. The current will increase.
C. The phase shift will decrease.
D. The input voltage will increase.

Question 9

RC circuits can be used to filter a signal by blocking certain frequencies and passing others.

A. TRUE
B. FALSE