Two identical positive charges are placed at the diagonally opposite corners of a square and two more identical but negative charges are placed at the remaining two corners. What is the work done in putting all charges together at the centre if q is the magnitude of each charge and 2a is the length of each side of the square?

Two identical positive charges are placed at the diagonally opposite c

1.	Two identical positive charges are placed at the diagonally opposite corners of a square and two more identical but negative charges are placed at the remaining two corners. What is the work done in putting all charges together at the centre if q is the magnitude of each charge and 2a is the length of each side of the square?
Answer» ANSWER :`q^2((4-sqrt2))/(8piepsilon0a)J`

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