Engineering Physics

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 ...