Physics

Problem

A small conducting sphere has a net charge of

+3.2\,\mu\text{C}

. It is then connected briefly to Earth until it becomes electrically neutral. Approximately how many electrons move through the grounding connection during this process, and in which direction do they flow? a)

2.0 \times 10^{13}

electrons flow from the sphere to Earth. b)

2.0 \times 10^{13}

electrons flow from Earth to the sphere. c)

6.4 \times 10^{13}

electrons flow from Earth to the sphere. d)

3.2 \times 10^{12}

electrons flow from Earth to the sphere.

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