Two electric dipoles are consists of charges -q1 , +q1 and -q2 , +q2 having position vectors vectors r1 , r2 and vectors r3 , r4. Find the (a) Elecric Field Intensity and(b) Electric Potential at point P due to dipoles. From the centers of dipoles the position of point P is at vector r5 and vector r6 from the centers of the dipoles?

Problem

An electrically charged spherical object having charge 'q' , radius 'r' and mass 'm' is rotating about its own axis with angular velocity 'w'. Find the force acting on the particle of charge '-q'and mass '-m' placed at an angle '*' from equatorial plane?

Problem

An electron is revolving around a nucleus of an atom having atomic number 'Z' in radius 'r'. Assume that suddenly it stops. Find the duration in which it falls at the surface of nucleus ?
Take mass of electron 'm' and proton 'M'

Problem

A point mass 'm' is placed at the centre of a ring of mass 'M' and radius 'r' . Find the period of oscillation of the particle if it is slightly displaced outwards from the centre?

Problem

Four particles having same mass 'M' are placed at the corners of a square of side 'A' , a point mass 'm' is placed at the centre of the square. It is displaced slightly outward from the centre, Find its frequency of Oscillations?

Problem

An electrically charged particle having charge 'Q' , mass 'M' and radius 'R' is rotating about its own axis with an angular velocity 'W'(Omega). Find the electric field intensity at its surface?