Electromagnets are made of soft iron because soft iron has

Which of the following materials exhibits diamagnetism?

$A$ paramagnetic sample shows a net magnetisation of $8 \text{ Am}^{-1}$ when placed in an external magnetic field of $0.6 \text{ T}$ at a temperature of $4 \text{ K}$. When the same sample is placed in an external magnetic field of $0.2 \text{ T}$ at a temperature of $16 \text{ K}$,the magnetisation will be

The soft-iron is a suitable material for making an electromagnet. This is because soft-iron has

The materials having negative magnetic susceptibility are

If a diamagnetic substance is brought near the north or south pole of a bar magnet,it is: