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Home ‣ Electronics ‣ Capacitors See What Others Are Saying!
  • Question

  • If a charged capacitor is disconnected from a circuit, it will:


  • Options
  • A. immediately discharge
  • B. recharge
  • C. remain charged
  • D. leak the charge

  • Correct Answer
  • leak the charge 

    • More questions

    • 1. Which voltage source converts chemical energy to electrical energy?

    • Options
    • A. Electrical generator
    • B. Battery
    • C. Solar cell
    • D. Electronic power supply
      • Discuss
    • 2. Which digital IC package type makes the most efficient use of printed circuit board space?

    • Options
    • A. SMT
    • B. TO can
    • C. flat pack
    • D. DIP
      • Discuss
    • 3. What will a 1 µF capacitor store?

    • Options
    • A. one coulomb of charge
    • B. 6.24 x 1012 electrons
    • C. one volt
    • D. one µA of current
      • Discuss
    • 4. What is the impedance of an ac RC parallel circuit if the resistance is 12 ohms and the capacitive reactance equals 5 ohms?

    • Options
    • A. 0.2 ohms
    • B. 3.5 ohms
    • C. 4.6 ohms
    • D. 13 ohms
      • Discuss
    • 5. 

      What is the total inductance in the given circuit?


    • Options
    • A. 160 mH
    • B. 300 mH
    • C. 900 mH
    • D. 1700 mH
      • Discuss
    • 6. Parity checking can only detect an odd number of errors.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. 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
    • 8. 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
    • 9. Elements with 1, 2, or 3 valence electrons usually make excellent:

    • Options
    • A. conductors
    • B. semiconductors
    • C. insulators
    • D. neutral
      • Discuss
    • 10. What is the high cutoff frequency for an RLC circuit that resonates at 2000 Hz and has a bandwidth of 250 Hz?

    • Options
    • A. 2125 Hz
    • B. 2250 Hz
    • C. 1750 Hz
    • D. 8.0 Hz
      • Discuss

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