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

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. .

Six equal point charges q each are placed at six corners of a hexago of side a. Find out potential energy of charge system

Six equal point charges q each are placed at six corners of a hexago of side a. Find out potential energy of charge system

Four identical charges each .q. are placed at four corners of a square of side .a.. Find the charge to be placed at the centre of the square so that the system of charges is in equilibrium

Four small point charges (each of equal magnitude q) are placed at four corners of a regular tetrahedron of side a. find out potential energy of charge system

Four small point charges (each of equal magnitude q) are placed at four corners of a regular tetrahedron of side a. find out potential energy of charge system

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