Physics

Problem

Two identical isolated metal spheres

A

and

B

carry charges of

+6.4\,\mu\text{C}

and

-1.6\,\mu\text{C}

, respectively. They are connected by a thin conducting wire, allowed to come to equilibrium, and then disconnected. The number of electrons that flow through the wire during this process is approximately a)

5.0\times10^{13}

electrons flow from

B

A

2.5\times10^{13}

electrons flow from

A

B

2.5\times10^{13}

electrons flow from

B

A

2.5\times10^{12}

electrons flow from

B

A

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