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Engineering Physics by S. Mani Naidu

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Multiple Choice Questions

  1. The magnetic susceptibility of a diamagnetic substance is:     ( )
    1. negative
    2. zero
    3. positive and low value
    4. positive and high value
  2. Ferrites show:     ( )
    1. diamagnetism
    2. paramagnetism
    3. ferromagnetism
    4. ferrimagnetism
  3. A Bohr magneton is equal to:     ( )
    1. 9.27 × 10‒14 A−m2
    2. 9.27 × 10‒24 A−m2
    3. 6.27 × 10‒14 A−m2
    4. 6.27 × 10‒24 A−m2.
  4. If the applied magnetic field will not show any effect on a material, then the material is a:     ( )
    1. diamagnetic material
    2. ferromagnetic material
    3. anti-ferromagnetic material
    4. non-magnetic material
  5. A material which magnetizes to a small extent in the opposite direction to the applied external magnetic field is:     ( )
    1. ferrimagnetic material
    2. anti-ferromagnetic material
    3. diamagnetic material
    4. paramagnetic ...

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