A. demagnetising metallic parts
B.  remagnetising metallic parts
C.  removal of magnetic impurities
D.  removing gases from materials

A. motors
B. loud speakers.
C. generators
D. None

A. non linearly
B. parabolically
C. sinusoidally
D. linearly

A.  monopole moment.
B. the dipole moment.
C. Both a and b
D. None

A. ferromagnetic substances
B. magnetic substances
C. non magnetic substances
D. diamagnetic substances

A. bipolar
B. paramagnetic
C. diamagnetic
D. ferromagnetic

A. 1
B. 2
C. 5
D. 8

A. Low temperature
B. Crystal growth
C.  High temperature
D.  Friction and wear

A. Large hysteresis loop
B.  High electrical resistivity
C.  High magnetic permeability
D. None of these

A. Dielectric strength
B. Dielectric strength
C. Absorptivity
D. Emissivity