There is an infinite straight chain of alternating charges q and -q. The distance between the two neighbouring charges is equal to a. Find the interaction energy of any charge with all the other charges.

There is an infinite straight chain of alternating charges q and -q . The distance between teh neighbouring charges is equal to a . Find the interaction energy of each charge with all the others. Instruction . Make use of the expansion of In (1 + alpha) in a power series in alpha .

The product of positive charge and distance between the two charges is

A point charge q is located at a distance l from an infinite tonducting plane. Find the interaction energy of that charge with chose induced on the plane.

Four identical charges q are placed at the corners of a square of side a. Find the potential energy of one of the charges due to the remaining charges. .

A charge is divided into two charges q and (Q-q) .The value of q so that force between them is maximum is equal to

Three point charges q are placed at three vertices of an equilateral triangle of side a. Find magnitude of electric force on any charge due to the other two.

Two point charges q and -2q are kept 'd' distance apart. Find the location of the point relative to charge q at which potential due to the system of charges is zero.

A charge Q exerts a 12 N force on another charge q. If the distance between the charges is doubled, what is the magnitude of the force exerted on Q by q?

Four similar point charges q are located at the vertices of a tetrahedron with an edge a. the energy of the interaction of charges is: