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

  • 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

  • Correct Answer
  • 1 k Ω 

    • More questions

    • 1. Generally, increasing the resistance in a circuit will decrease the current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A capacitor takes ___ time constants to charge to 95% of its capacity.

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
      • Discuss
    • 3. The term "integrator" is derived from a mathematical function in trigonometry.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. Variable resistors have problems with the wiper making contact.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A protoboard is used to make experimental circuits.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A rheostat is not a type of variable resistor.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. Transconductance is also called mutual conductance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A bipolar transistor has three leads: the base, collector, and emitter.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Which type of JFET bias requires a negative supply voltage?

    • Options
    • A. feedback
    • B. source
    • C. gate
    • D. voltage divider
      • Discuss
    • 10. A ______ is not a multivibrator.

    • Options
    • A. one-shot
    • B. flip-flop
    • C. VCO
    • D. bistable
      • Discuss

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