121.Two identical spheres carry identical electric charges

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

Problem

121.Two identical spheres carry identical electric charges. If the spheres are set a distance dd apart they repel one another with a force FF. A third sphere, identical to the other two but initially uncharged is then touched to one sphere and then to the other before being removed. What would be the resulting force between the original two spheres? (A) 34 F\frac{3}{4} \mathrm{~F} (B) 5/8 F5 / 8 \mathrm{~F} (C) 12 F\frac{1}{2} \mathrm{~F} (D) 3/8 F3 / 8 \mathrm{~F}

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