Equal charges q are placed at the three corners B, C, D of a square ABCD of side a. The potential at A is

Equal charges q are placed at the three corners B, C, D of a square ABCD of side 'a'. The ratio of potential at A to centre O is

Equal charges Q are placed at the four corners A, B, C, D of a square of length a. The magnitude of the force on the charge at B will be

Equal charges q are placed at the four corners A,B,C,D of a square of length a . The magnitude of the force on the charge at B will be

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. .

There are four point charges +q, -q, +q and -q are placed at the corners A, B, C and D respectively of a square of side a . The potential energy of the system is (1)/(4pi epsilon_(0)) times

Charges +q , -q , +q and -q are placed at the corners A ,B,C and D respectively of a square of side a . The potential energy of the system is 1//4 pi epsilon_(0) times

Three charges, each equal to q, are placed at the three. corners of a square of side a . Find the electric field at. the fourth corner.

Four identical point charges q are placed at four corners of a square of side a. Find the potential energy of the charge system. .

Three charges ,each of + 4 mu C ,are placed at the corners A,B,C of a square ABCD of side 1 m .The electric field at the centre O of a square ABCD of side 1 m .The electric field at the centre O of the square is