Physics miscellaneousHard
Question
Four charges are placed at corner of a rectangle. Which of the following is true at centre (O) :-


Options
A.E = 0 & V = 0
B.E ≠ 0 & V = 0
C.E = 0 & V ≠ 0
D.E ≠ 0 & V ≠ 0
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