Capacitor Questions and Answers

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Showing 10 of 48 questions
Q11
In an ac circuit, an output capacitor and a resistor are connected in series with an ac signal. What filter action will be the result?
  • A bandpass
  • B low-pass
  • C high-pass
  • D band-stop
Answer: Option B
Q12
What is the total opposition to current in a series RC circuit called?
  • A impedance
  • B inductance
  • C reactance
  • D resistance
Answer: Option A
Q13
What is the total opposition to current in a series RC circuit called?
  • A impedance
  • B inductance
  • C reactance
  • D resistance
Answer: Option A
Q14
In a capacitive circuit, current flow is limited to
  • A charging periods
  • B discharging periods
  • C neither charging periods nor discharging periods
  • D both charging periods and discharging periods
Answer: Option D
Q15
A capacitor is constructed of two parallel:
  • A conductors
  • B semiconductors
  • C inductors
  • D dielectrics
Answer: Option A
Q16
Which of the following determines the capacitance of a capacitor?
  • A Plate area, dielectric strength, and plate separation
  • B Voltage rating, dielectric constant, and temperature coefficient
  • C Temperature coefficient, plate area, and plate separation
  • D Plate area, dielectric constant, and plate separation
Answer: Option D
Q17
Most older types of paper capacitors have been replaced by which type of construction?
  • A electrolytic
  • B plastic film
  • C oxide casing
  • D waxed paper
Answer: Option B
Q18
What is the impedance of a series RC circuit that consists of a 0.22 F capacitor and a 200-ohm resistor connected to a 3 kHz source?
  • A 214 ohms
  • B 313 ohms
  • C 414 ohms
  • D 880 ohms
Answer: Option B
Q19
What is the reactance value for a capacitor installed in a dc circuit?
  • A zero
  • B moderate
  • C infinite
  • D cannot tell
Answer: Option C
Q20
In a purely capacitive circuit,
  • A current leads voltage by 90°
  • B voltage leads current by 90°
  • C current lags voltage by 90°
  • D current and voltage have a phase relationship of 0°
Answer: Option A

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