Four electric charges +q, +q, -q and -q are placed in order at the corners of a square of side '2r'. The electric potential at the centre of square is - VgyanHub

Question:

Four electric charges +q, +q, -q and -q are placed in order at the corners of a square of side ‘2r’. The electric potential at the centre of square is

Options :

(a) 1/4πε0 x 2q/r [1/√5-1]
(b) 1/4πε0 x 2q/r [1-/√5]
(c) 1/4πε0 x 2q/r [1/√5+1]
(d) zero

Answer :

(d) zero

Answer Steps :

step 1

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