RC Circuits MCQ

RC Circuits MCQ

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  • 22nd Feb, 2023

RC Circuits MCQ Questions

Take RC Circuits MCQ Test & Online Quiz to Test Your Knowledge

Practice here the best RC Circuits MCQ Questions that checks your basic knowledge of RC Circuits. This RC Circuits MCQ Test contains 20+ Multiple Choice Questions. You have to select the right answer to the question. Finally, you can also download here RC Circuits MCQ PDF, completely free.

RC Circuits MCQ Test

1) Which is the reference vector for parallel RC circuits?

  • A. I
  • B.V
  • C.R
  • D.None of the above

2) What is called the power that is measured in volt-amperes?

  • A. True power
  • B.Reactive power
  • C.Apparent power
  • D.Impedance power

3) Which of the following statement is true about a series circuit?

  • A. The resistor voltage lags the current
  • B.The current lags the source voltage.
  • C.The current leads the source voltage.
  • D.None of the above

4) What is the expression of current in the R- C circuit?

  • A. i=(V/R)exp⁡(t/RC )
  • B.i=(V/R)-exp(⁡t/RC )
  • C.i=(V/R)exp⁡(-t/RC )
  • D.i=(V/R)-exp⁡(-t/RC )

5) What do you mean by an RC circuit ?

  • A. a circuit with both a resistor (R) and a capacitor (C)
  • B.a resistor (R) and a capacitor (C).
  • C.Voltage
  • D.Current
Download Free : RC Circuits MCQ PDF

6) The relationship between change in charge, current and the time interval is:

  • A. ΔQ = I Δt
  • B.ΔQ = I /Δt
  • C.ΔQ = 2I /Δt
  • D.None of the above

7) Which one is the formula for Voltage, charge and capacitance of a capacitor in RC circuit?

  • A. V=Q/C
  • B.V=QC
  • C.V=2Q/C
  • D.None of the above

8) What does RC circuit stands for?

  • A. resistor–capacitor circuit
  • B.resistor–conductor circuit
  • C.rotator–capacitor circuit
  • D.All of the above

9) The two most common RC filters are the ___.

  • A. high-pass filters
  • B.low-pass filters
  • C.Both A and B
  • D.None of the above

10) The relationship between the complex impedance, ZC (in ohms) of a capacitor with capacitance C (in farads) and complex frequency s is ___.

  • A. ZC=1/2sC
  • B.ZC=1/sC
  • C.ZC=2/sC
  • D.ZC=1/3sC

11) A complex number represents a phasor quantity.

  • A. True
  • B.False

12) When the frequency of the source voltage decreases, the impedance of a parallel RC circuit:

  • A. Decreases to zero
  • B.Increases
  • C.Does not change
  • D.Decreases

13) When the frequency of the voltage applied to a series RC circuit is increased, the phase angle ____.

  • A. increases
  • B.decreases
  • C.remains the same
  • D.becomes erratic

14) The combination of reactive power and true power in RC circuit is called apparent power.

  • A. True
  • B.False

15) Is Apparent power is measured in the unit of Volt-Amps (VA)?

  • A. Yes
  • B.No

16) Total current in an RC circuit always leads the source voltage.

  • A. True
  • B.False

17) In an R-C circuit, when the switch is closed, the response ___.

  • A. do not vary with time
  • B.decays with time
  • C.rises with time
  • D.first increases and then decreases

18) When the frequency of the source voltage decreases, the impedance of a parallel RC circuit ___.

  • A. increases
  • B.decreases
  • C.does not change
  • D.decreases to zero

19) Positive numbers can be represented by points to the right of the origin on the horizontal axis of a graph.

  • A. True
  • B.False

20) The time constant τ for an RC circuit is defined as RC.

  • A. True
  • B.False

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