When a ferromagnetic substance is magnetised there are small changes i – McqOptions

MCQOPTIONS

1.	When a ferromagnetic substance is magnetised there are small changes in dimensions. This phenomenon is called
A.	hysteresis
B.	magnetostriction
C.	diamagnetism
D.	dipolar relaxation
Answer» C. diamagnetism

Discussion

No Comment Found

Related MCQs

What about the stability of system in
An energy signal has G(f) = 10. Its energy density spectrum is
The first geostationary satellite launched in 1965 was called
Rotation of a geosynchronous satellite means its
The present total cost per watt of power generation in geosynchronous orbit is nearly Rs.
For F1 layer the maximum ionic density is 2.3 x 104 electrons per cc. The critical frequency for this layer will be
Which one of the following does represents the electric field lines for the TE02 mode in the cross section of a hollow rectangular metallic waveguide?
Radiation intensity of a dipole depends strongly on frequency. If at a frequency f, the intensity of radiation is 'I'. Then at a frequency of f/2, the intensity will be
The input impedance of short-circuited line of length l where /4 < l < /2, is
A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls find cut off wavelength for dominant mode.