Four equal point harges each `16 mu C` are placed on the four corners of a square of side 0.2 m. Calculate the force on any one of the charges.

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.

Charges 1mu coul each are placed at the corners of a squares of side 9 cm. Calculate the potential at the centre of the square.

Four masses, each equal to M are placed at the four corners of a square of side a. Calculate the force of attraction on another mass m, kept at the centre of the square.

Four point charges each of 10 nano coulomb are placed at the four corners of a square of side 2 m each. Find the neat potential at the centre of the square.

Four point charges are placed at the corners of a square of side l. Calculate potential at the centre of square.

Four point charges are placed at the corners of a square of side l. Calculate potential at the centre of square.

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