Obtain an expression for potential due to a point charge

An electric dipole is palced in an external elec tric field. Obtain an expression for the potential energy of the dipole.

The uniform acceleration produced in a freely falling body due to gravitational pull of the earth is known as acceleration due to gravity. Obtain an expression for acceleration due to gravity at a depth 'd' from the surface of earth.

Weight of a body is the force of gravitational attraction experienced by it. It is equal to the product of mass of the body and acceleration due to gravity. Obtain an expression for the acceleration due to gravity of a body in terms of the mass of the earth.

A hydrogen ion of mass 'm' charge 'q' travel with a speed 'v' along a circle of radius 'r' in uniform magnetic field of flux density 'B". Obtain an expression for the magnetic force on the ion and determine its time period?

Obtain an expression for force using Newtons law.

Derive an expression for electric field due to a uniformly charged spherical shell. i) at a point outside the shell

Obtain an expression for capacitance of a paral lel plate capacitor

Obtain an expression for the frequency at which resonance occurs in a series LCR circuit

A microscope is a device used to obtain magnified images of small objects. Obtain an expression for the magnification produced by a compound microscope.