logo

CuriousTab

CuriousTab

Discussion


Home Electronics Inductors Comments

  • Question
  • The ___ cannot change instantaneously in an inductor.


  • Options
  • A. voltage
  • B. current
  • C. power
  • D. magnetic field

  • Correct Answer
  • current 


  • Inductors problems


    Search Results


    • 1. The ___ of a coil is the inherent resistance of the wire.

    • Options
    • A. ac resistance
    • B. reactance
    • C. winding resistance
    • D. permeability
    • Discuss
    • 2. An air-core inductor has a metal core.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. 

      The total inductance in the given circuit is 0.6 mH.


    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The primary winding of a transformer is the side connected to the load.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. The current through an inductor in a parallel RL circuit leads the current through the resistor.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. 

      The inductance value of L3 in the given figure is _____ if the total inductance is 340 mH.


    • Options
    • A. 150 mH
    • B. 220 mH
    • C. 295 mH
    • D. 315 mH
    • Discuss
    • 7. 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
    • Discuss
    • 8. Inductive ___ represents the opposition to an alternating current.

    • Options
    • A. impedance
    • B. resistance
    • C. reluctance
    • D. reactance
    • Discuss
    • 9. 

      The total inductive reactance is ___ in the given circuit.


    • Options
    • A. 3.5 kΩ
    • B. 4.4 kΩ
    • C. 16.3 kΩ
    • D. 23.3 kΩ
    • Discuss
    • 10. ___ power represents the energy dissipated at a given point in time.

    • Options
    • A. True
    • B. Reactive
    • C. Real
    • D. Instantaneous
    • Discuss


    Comments

    There are no comments.

Enter a new Comment