Curie temperature is the temperature above which:

$A$ ball of superconducting material is dipped in liquid nitrogen and placed near a bar magnet.
$(i)$ In which direction will it move?
$(ii)$ What will be the direction of its magnetic moment?

Nickel shows ferromagnetic property at room temperature. If the temperature is increased beyond Curie temperature,then it will show

Which of the following statements is true in respect of diamagnetic substances?

What is the nature of the magnetic susceptibility of a diamagnetic substance?

$A$ thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current in the electromagnet is switched on,the diamagnetic rod is pushed up,out of the horizontal magnetic field. Hence,the rod gains gravitational potential energy. The work required to do this comes from: