Derive expression for pressure exerted by gas.

Derive an expression for the pressure exerted by a liquid column.

How is the concept of pressure exerted by the gas explained on the basis of kinetic theory of gases?

Derive expression for self inductance for a solenoid.

Derive an expression for the torque expereinced by a amgnetic dipole suspened in a uniform magneic field.

A bubble of gas released at the bottom of a lake increases to four times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m high, what is the depth of the lake?

Derive expression for torque in cartesian co-ordinate system.