Question: Let four point charges a, -9/2, 9 &-9/2 be placed at vertices of a square of side a. Let another charge - a be

Let four point charges a, -9/2, 9 &-9/2 be placed at vertices of a square of side a. Let another charge - a be

Let four point charges a, -9/2, 9 &-9/2 be placed at vertices of a square of side a. Let another charge - a be placed at the centre of the square. -9/2 1-q q q -9/2 let vir) be the electrostatic Potential at a point P at a distance oysa from the centre of the square. Then V(20) /v(r) is: a> 1 b) 1/2 d) 48

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