Why is diamagnetism independent of temperature?

Which of the following is independent of temperature?

Two rods of length L_1 and L_2 are made up of different material whose coefficient of linear expansion are alpha_1 and alpha_2 respectively. The difference between their lengths will be independent of temperature if L_1/L_2 is equal to.

The T.N.E.I. is independent of the

A copper rod of 88 cm and an aluminium rod af unknown length have their increase in length independent of increase in temperature. The length of aluminum rod is (a_(cu) = 1.7 xx 10^-5 K^-1 and alpha_(Al)=2.2 xx 10^-5 K^-1)

Is the permeability of a ferromagnetic material independent of the magnetic field? If not, is it more for lower or higher fields?

Why does molarity of a solution depend upon temperature?

The potential difference generated across a solar cell is independent of its area.

Why is the moment of a couple independent of the axis of rotation even if axis is fixed?

The moment of couple is independent of

Events A and B are independent if