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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Point charge are placed at the verticas of a squre of side a as shown in fig. What should be the sign of charge q and magnitude of the ratio |q/Q| so that (i) net force on each Q is zero? (ii) net force on each q is zero? Is it possible that the entire system could be in electrostatic equilibrium?

Point charge are placed at the verticas of a squre of side a as shown in fig. What should be the sign of charge q and magnitude of the ratio |q/Q| so that (i) net force on each Q is zero? (ii) net force on each q is zero? Is it possible that the entire system could be in electrostatic equilibrium?

and q3 at the vertices of n equilateral triangle of side l. what is the force on a charge Q placed at the centroid of the triangle? Consider three charges q1 each equal to q q2