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  • Question
  • A capacitor is constructed of two parallel:


  • Options
  • A. conductors
  • B. semiconductors
  • C. inductors
  • D. dielectrics

  • Correct Answer
  • conductors 


  • Capacitors problems


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    • 1. Capacitive reactance values connected in series offer

    • Options
    • A. an increase in total XC
    • B. a decrease in total XC
    • C. no change in total XC
    • D. total opposition to voltage in the circuit
    • Discuss
    • 2. When a 4.7 µF capacitor is connected to a 1 kHz source, what is its capacitive reactance?

    • Options
    • A. 4.7 ohms
    • B. 29.5 ohms
    • C. 34 ohms
    • D. 213 ohms
    • Discuss
    • 3. What is the total opposition to current in a series RC circuit called?

    • Options
    • A. impedance
    • B. inductance
    • C. reactance
    • D. resistance
    • Discuss
    • 4. In a capacitive circuit, current flow is limited to

    • Options
    • A. charging periods
    • B. discharging periods
    • C. neither charging periods nor discharging periods
    • D. both charging periods and discharging periods
    • Discuss
    • 5. When a circuit consists of a capacitor and a resistor in series with a voltage source, and the voltage across the resistor is zero, then the capacitor is:

    • Options
    • A. charging
    • B. discharging
    • C. fully charged
    • D. fully discharged
    • Discuss
    • 6. 

      What is the reactive power in the given circuit?


    • Options
    • A. 0 VAR
    • B. 691 µVAR
    • C. 44.23 mVAR
    • D. 1.45 kVAR
    • Discuss
    • 7. A capacitor's rate of charge is considered:

    • Options
    • A. magnetic
    • B. a current block
    • C. linear
    • D. exponential
    • Discuss
    • 8. If a current of 40 mA flows through a series circuit consisting of a 0.4 µF capacitor and a resistor in series with a 4 kHz, 40 Vac source, what is the total circuit impedance?

    • Options
    • A. 10 Ω
    • B. 100 Ω
    • C. 1 k Ω
    • D. 1 M Ω
    • Discuss
    • 9. You could increase the time constant of an RC circuit by

    • Options
    • A. adding a resistor in parallel with the circuit resistance
    • B. adding a capacitor in parallel with the circuit capacitance
    • C. increasing the amplitude of the input voltage
    • D. exchanging the position of the resistor and capacitor in the circuit
    • Discuss
    • 10. 

      What is the capacitance of the circuit shown in the given circuit?


    • Options
    • A. 0.066 µF
    • B. 0.9 µF
    • C. 65.97 pF
    • D. 900 pF
    • Discuss


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