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Home ‣ Electronics ‣ Magnetism and Electromagnetism Comments
  • Question

  • The operation of an electrical generator relies on electromagnetic induction.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Magnetism and Electromagnetism problems

    Search Results

    • 1. 
      When the south poles of two bar magnets are brought close together, there will be a force of attraction.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. The unit of magnetic flux is the weber.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The ability of a material to maintain a magnetized state (without the presence of a magnetizing force) is called hysteresis.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The ___ is the unit for resistance, reactance, and impedance.

    • Options
    • A. farad
    • B. henry
    • C. ohm
    • D. watt
      • Discuss
    • 5. The number 5200 ×10?2 equals ___ × 101.

    • Options
    • A. 0.52
    • B. 5.2
    • C. 52
    • D. 520
      • Discuss
    • 6. Magnetic flux flows from the north pole to the south pole within the magnet.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A voltage is induced across a conductor if it remains absolutely stationary within a magnetic field.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. The induced emf of a conductor cutting flux lines is directly proportional to the rate of cutting.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. The magnetic field, current through the Hall element, and Hall voltage are all at right angles to each other.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A magnetic material such as iron can change the course of magnetic lines of force.

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

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