manetism part 1

Theory of magnetism is given by .........................

all the substances having properties of the magnet are made up of

• Bigger magnets present in a large number

• Smaller magnets present in a large number

• smaller magnets present in a small number

Which of these is a permanent magnet substance

• Diamagnetic

• Paramagnetic

• Ferromagnetic

Mark the correct statement

• Magnetic lines of forces never intersect each other

• Magnetic lines of forces are parallel around pole ends only

• Magnetic lines of forces are pendicular to each other

In common materials, the vectors 𝐵 and H are

• Non linear

• collinear

• Aligned

Magnetic field intensity is indicated by

• B

• H

• C

Define magnetic field intensity and magnetic induction field.

Write attractive repulsive and directive properties of a magnet

Is there is any known insulator of magnetic lines of force

Define magnetic variation