mcq unit 4

Name

Register No.

Unit of magnetic flux density is

• Wb.m
• Ampere/m
• Tesla/m

Magnetism arises due to

• Spin of electrons
• orbital and spin motion of electrons
• motion of nucleus
• centrifugal force of attraction

Degree of magnetisation of a material in response to the applied magnetic field is

• magnetic permeability
• magnetic susceptibility
• flux density
• intensity of magnetisation

What is the dimension of magnetic susceptibility ____

The susceptibility of paramagnetic substance is

• low and negative
• very high and positive
• low and positive
• high and negative

All materials exhibit this property

• ferromagnetic
• antiferromagnetic
• paramagnetic
• diamagnetic

Paramagnetic susceptibility is

• linear behaviour with T
• inversely proportional with T
• inversely proportional to Curie constant
• directly proportional to Curie constant

There is no net magnetic moment if there is no unpaired electrons in an atom

• True
• False