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  • Question

  • What is the total opposition to current in a series RC circuit called?


  • Options
  • A. impedance
  • B. inductance
  • C. reactance
  • D. resistance

  • Correct Answer
  • impedance 

    • Capacitors problems

    Search Results

    • 1. 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
    • 2. 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
    • 3. What is the value of a capacitor that can store two coulombs of charge when 500 volts is applied across its plates?

    • Options
    • A. 4 µF
    • B. 250 µF
    • C. 4,000 µF
    • D. 250 F
      • Discuss
    • 4. The strength of an electric field at a given point is proportional to the potential difference on the plates and inversely proportional to the:

    • Options
    • A. plate separation
    • B. negative plate only
    • C. field strength
    • D. charge difference
      • Discuss
    • 5. 

      How long would it take the capacitor in the given circuit to completely charge if the switch was in position 1?


    • Options
    • A. 22 ms
    • B. 69 ms
    • C. 345 ms
    • D. 440 ms
      • Discuss
    • 6. 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
    • 7. 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
    • 8. A capacitor is constructed of two parallel:

    • Options
    • A. conductors
    • B. semiconductors
    • C. inductors
    • D. dielectrics
      • Discuss
    • 9. 

      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
    • 10. A capacitor's rate of charge is considered:

    • Options
    • A. magnetic
    • B. a current block
    • C. linear
    • D. exponential
      • Discuss

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