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125.Two charges exert a force of 10 N on each other when separated by distance 0.2in air .when they are placed in another medium of dielectric constant k=4 and separated by distance R they exert same force.the distance r= ?

Answer» 125.Two charges exert a force of 10 N on each other when separated by distance 0.2in air .when they are placed in another medium of dielectric constant k=4 and separated by distance R they exert same force.the distance r= ?


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