Derive an expression for the mutual induction between pair of coil.

Using Biot-Savart's law, derive an expression for the magnetic field at the center of a circular coil carrying current

Derive an expression for the magnetic field intensity produced at a point lying along the axis of a circular coil carrying current.

Derive an expression for the bandwidth in Young's double slit experiment.

Derive an expression for the terminal velocity of a ball in terms of coefficient of viscosity of the medium.

Derive an expression for the escape velocity of an object from the surface of a planet.

Two coils are placed close to each other. The mutual inductance of the pair of coils depends upon_____.