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Home ‣ Electrical Engineering ‣ Magnetism and Electromagnetism Comments
  • Question

  • Electromagnetic induction is the force that produces a magnetic field.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Magnetism and Electromagnetism problems

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    • 1. Reluctance in a magnetic circuit is analogous to current in an electrical circuit.

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    • A. True
    • B. False
      • Discuss
    • 2. A magnetic field is made up of flux lines.

    • Options
    • A. True
    • B. False
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    • 3. Lenz's law defines the polarity of the induced voltage.

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    • A. True
    • B. False
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    • 4. Hysteresis is the number of lines of force per unit area in a magnetic field.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. Materials with a low retentivity do not retain a magnetic field very well.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Voltage leads current by 90° in a capacitor.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The dielectric constant is the ability of a material to establish an electric field.

    • Options
    • A. True
    • B. False
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    • 8. Total parallel capacitance is less than that of the smallest capacitor in parallel.

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    • A. True
    • B. False
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    • 9. The ohm is the unit of capacitance.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Capacitance is directly proportional to plate area and plate separation.

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    • A. True
    • B. False
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