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

  • After the first time constant, a transient current has changed by _______________ %, leaving _______________ % remaining.


  • Options
  • A. 63.2, 36.8
  • B. 36.8, 63.2
  • C. 13.5, 86.5
  • D. 86.5, 13.5

  • Correct Answer
  • 63.2, 36.8 

    • More questions

    • 1. Inaccurate analog-to-digital conversion may be due to ____________.

    • Options
    • A. constant analog input voltage
    • B. linear ramp usage
    • C. intermittent counter inputs
    • D. faulty sample-and-hold circuitry
      • Discuss
    • 2. The voltage across a 2.2 kΩ resistor is ___ if 3 mA of current is flowing through it.

    • Options
    • A. 6.6 V
    • B. 7.33 V
    • C. 1.4 V
    • D. 0.8 V
      • Discuss
    • 3. Carbon composition resistors are the most common and the least expensive type of fixed-value resistor.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The beta of a BJT is the ratio of collector current to emitter current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A Wheatstone bridge may be used to determine the value of an unknown resistance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. What is the quality factor?


    • Options
    • A. 999
    • B. 223
    • C. 2.2
    • D. 0.99
      • Discuss
    • 7. For series ac circuits containing both resistance and inductive reactance, total opposition to current can be found by simply adding ohmic values or oppositions to current.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. 

      What is the impedance of the circuit in the given circuit?


    • Options
    • A. 125.7 Ω
    • B. 297.6 Ω
    • C. 370.1 Ω
    • D. 423.3 Ω
      • Discuss
    • 9. What is the band pass (F1 ? F2) of an RLC filter that resonates at 150 kHz and has a coil Q of 30?

    • Options
    • A. 100.0 kHz to 155.0 kHz
    • B. 147.5 kHz to 152.5 kHz
    • C. 295.5 kHz to 4500 kHz
    • D. 149,970 Hz to 150,030 Hz
      • Discuss
    • 10. An oscillator whose frequency can be controlled by an input "control voltage" is called a(n) ______ .

    • Options
    • A. PLL
    • B. Schmitt trigger
    • C. VCO
    • D. S-R latch
      • Discuss

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