Question

$1)$ A ball of superconducting material is dipped in liquid nitrogen and placed near a bar magnet.

$A)$ In which direction will it move?

$2)$ A ball of superconducting material is dipped in liquid nitrogen and placed near a bar magnet.

$B)$ What will be the direction of its magnetic moment?

Answer 1

$A)$ A superconducting material and nitrogen both are diamagnetic in nature.

When we dipped ball in liquid nitrogen it will become diamagnetic material or acquired diamagnetic properties. When the ball will be in contact with a magnet will form magnetic poles in opposite direction of the magnet, repelling the ball away.

Final answer: Away from the magnet.

$B)$ A superconducting material and nitrogen both are diamagnetic in nature.

When we dipped ball in liquid nitrogen it will become diamagnetic material or acquired diamagnetic properties. When the ball will be in contact with a magnet will form magnetic poles in opposite direction of the magnet, repelling the ball away.

As the ball is repelled away it can be said that the magnetic moment will form opposite in direction to the magnetic field applied.

Final answer: Magnetic moment is opposite to direction of magnetic field applied.