It is requird to hold four equal point charges `+q` in equilibrium at the corners of a square. Find the point charge that will do this, if placed at the centre of the square.

IT si required to hold four equal point charges each having a charge Q=(8)/(7)(1-2sqrt(2))C in equilibrium at the corners of a square.Find the point charge in coulombs that will do this if placed at the centre of the square.

Four equal point charges, each of magnitude +Q , are to be placed in equilibrium at the corners of a square. What should be the magnitude and sign of the point charge that should be placed at the center of the square to do this job?

A point charge Q is placed at the corner of a square of side a. Find the flux through the square.

Four point charge are placed at the corners of a square with diagonal 2a as shown. What is the total electric field at the center of the squre?

Four charges are arranged at the corners of a square as shown in the figure. The direction of electric field at the centre of the square is along

A point charge Q is placed at the corner of a square of side a, then find the flux through the square.

Four point charges of +1muc each are placed on the four corners of a square of side 1 m. Calculate the electric potential at the centre of the square.

Four point charges are placed at the corners of a square ABCD of side 10 cm, as shown in figure. The force on a charge of 1muC placed at the centre of square is

Four charges are arranged at the corners of a square ABCD, as shown. The force on a positive charge kept at the centre of the square is

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