Q.1
When the plate area of a capacitor increases,
  • The capacitance increases
  • The capacitance decreases
  • The capacitance is unaffected
  • The voltage it can withstand increases
Q.2
AkHz voltage is applied to a 0.µF capacitor, andmA of rms current is measured. What is the value of the voltage?
  • 8 V
  • 80 V
  • 800 V
  • 0.88 V
Q.3
A 0.µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is
  • 170 Ω
  • 17 Ω
  • 0.000169 Ω
  • 1.7 Ω
Q.4
Two 0.µF capacitors are connected in series across akHz sine wave signal source. The total capacitive reactance is
  • 46.8 Ω
  • 4.68 Ω
  • 23.41 Ω
  • 11.70 Ω
Q.5
A capacitor blocks A.C. but passes D.C.
  • True
  • False
Q.6
The true power in a capacitor is zero.
  • True
  • False
Q.7
A capacitor of 0.µF is larger than
  • 0.000020 F
  • 200,000 pF
  • 2,000 pF
  • All of the above
Q.8
ApF capacitor and apF capacitor are each connected across a 6 V dc source. The voltage across thepF capacitor is
  • 3 V
  • 6 V
  • 4 V
  • 0 V
Q.9
A capacitor of 2,pF is greater than
  • 0.02 µF
  • 0.002 µF
  • 0.0002 µF
  • 0.0000002 F
Q.10
Five time constants are required for a capacitor to charge fully or discharge fully.
  • True
  • False
Q.11
Voltage leads current byin a capacitor.
  • True
  • False
Q.12
What is the capacitance when Q =µC and V =V?
  • 720 µF
  • 5 µF
  • 50 µF
  • 12 µF
0 h : 0 m : 1 s