Four charges +q,+2q,+3q and +4q are placed at the four corners ABCD of a square of side a. Calculate the field and potential at the centre of the square.

Four charges +q,+2q,+3q and +4q are placed at the four corners ABCD of

1.	Four charges +q,+2q,+3q and +4q are placed at the four corners ABCD of a square of side a. Calculate the field and potential at the centre of the square.
Answer» Answer :`E=(sqrt2q)/(piepsilon_0a^a)J` away from the CENTRE and perpendicular to the LINE joining `+3q` and +4Q, `V=(5q)/(sqrt2piepsilon_0a)`

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Four charges +q,+2q,+3q and +4q are placed at the four corners ABCD of a square of side a. Calculate the field and potential at the centre of the square.

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