Capacitors Multiple Choice Questions - Set 02 - ObjectiveBooks

Capacitors Multiple Choice Questions - Set 02

Practice Test: Question Set - 02

1. A 4.7 MΩ resistor is in series with a 0.015 μF capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge?
    (A) 35 ms
    (B) 352 ms
    (C) 3.5 s
    (D) 70.5 ms

2. Two 0.68 μF capacitors are connected in series across a 10 kHz sine wave signal source. The total capacitive reactance is
    (A) 46.8 Ω
    (B) 4.68 Ω
    (C) 23.41 Ω
    (D) 11.70 Ω

3. Capacitance is directly proportional to plate area and plate separation.
    (A) True
    (B) False

4. A 10 μF, 20 μF, 22 μF, and 100 μF capacitor are in parallel. The total capacitance is
    (A) 2.43 μF
    (B) 4.86 μF
    (C) 100 μF
    (D) 152 μF

5. Voltage leads current by 90° in a capacitor.
    (A) True
    (B) False

6. A capacitor of 2,000 pF is greater than
    (A) 0.02 μF
    (B) 0.002 μF
    (C) 0.0002 μF
    (D) 0.0000002 F

7. The true power in a capacitor is zero.
    (A) True
    (B) False

8. A 12 kHz voltage is applied to a 0.33 μF capacitor, and 200 mA of rms current is measured. What is the value of the voltage?
    (A) 8 V
    (B) 80 V
    (C) 800 V
    (D) 0.88 V

9. The ohm is the unit of capacitance.
    (A) True
    (B) False

10. When the plate area of a capacitor increases,
    (A) The capacitance increases
    (B) The capacitance decreases
    (C) The capacitance is unaffected
    (D) The voltage it can withstand increases

Show and hide multiple DIV using JavaScript View All Answers

    Blogger Comment
    Facebook Comment