22nd
Feb

# RC Circuits MCQ

• 22nd Feb, 2023
• 320 Followers

## 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

### 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

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

• 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

• A. True
• B.False

• A. Yes
• B.No

• 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

• 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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