The work which is required to be done to make an arrangement of four paritcles each having a charge `+q` such that the particles lie at the four corners of a square of side a is

Calculate the work required to be done to make an arrangement of three particles each having a charge +q such that the particles lie at the vertices of an equilateral triagnle of side a. What work will be doen by electric field when the particles are shifted away so that the side of triangle becomes 2a ?

Calculate the work required to be done to make an arrangement of three particles each having a charge +q such that the particles lie at the vertices of an equilateral triagnle of side a. What work will be doen by electric field when the particles are shifted away so that the side of triangle becomes 2a ?

Find the electrostatic potential energy of the configuration of four charges +q,-q,+q and -q placed at the four corner A,B,C and D of a square of side r.

Four charges, each of value q, are placed at the four corners of a square of side a. What is the potential at the centre of the square

The work done required to put the four charges together at the comers of a square of side a, as shown in the figure is

Find the electric field and potential at the centre of a square of side d = 10 cm. Four identical charges of q=2muC each are kept at the four corners of a square.

Four charges are arranged at the corners of the square PQRS of side a as shown in the figure . (a) Find the work required to assemble these charges in the given configuration . (b) Suppose a charge q is brought to the center of the square by keeping the four charges fixed at the corners how much extra work is required for this ?