Find the magnitude and sign of the excess charge

Reference no: EM13288321

Earth has a net charge that produces an electric field of approximately 150 N/C downward at its surface.

(a) What is the magnitude and sign of the excess charge, noting the electric field of a conducting sphere is equivalent to a point charge at its center?

(b) What acceleration will the field produce on a free electron near Earth's surface?

Reference no: EM13288321

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