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  • Question
  • Magnetic force is the force that produces a magnetic field.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • Inductors problems


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    • 1. Five time constants are required for current in an inductor to reach a maximum value.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. Inductors connected in series will increase the total inductance value.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. For inductions in series, LT = L1 + L2 + L3 +...

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. Kirchhoff's voltage law does not apply to series RL circuits.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. Lenz's law states that the current induced in a circuit due to a change in the magnetic field is so directed as to oppose the change in flux or to exert a mechanical force opposing the motion.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. Maximum power will transfer across a transformer when the primary impedance equals the secondary impedance.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. Inductance is proportional to the cross-sectional area of a coil.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. In a dc circuit, the only conversion of energy to heat is in the inductance of the coil itself.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. An RL filter could be a high-pass or a low-pass filter.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. The primary and secondary are in phase.


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


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