A charge is placed at each of two opposite corners of a square

PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields

Problem

A charge QQ is placed at each of two opposite corners of a square. A charge qq is placed at each of the other two corners. If the resultant force on each charge qq is zero, then (a) q=2Qq=\sqrt{2}Q (b) q=−2Qq=-\sqrt{2}Q (c) q=22Qq=2\sqrt{2}Q (d) q=−22Qq=-2\sqrt{2}Q

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