Two identical conducting spheres are separated in space

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

Problem

Two identical conducting spheres are separated in space. Sphere A initially has a charge of +6.0 μC+6.0\,\mu\text{C}, and Sphere B has a charge of −2.0 μC-2.0\,\mu\text{C}. The spheres are briefly connected by a conducting wire and then separated again. Approximately how many electrons moved from one sphere to the other during the connection? (a) 1.3×10131.3\times10^{13} (b) 4.0×10134.0\times10^{13} (c) 2.5×10132.5\times10^{13} (d) 2.5×10122.5\times10^{12}

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