On a clear day the electric field in the atmosphere near, Ask an Expert

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On a clear day the electric field in the atmosphere near the earth's surface is 100 N/C, directed vertically downward.

(a) If we adopt the convention that the potential at the earth's surface is 0, what is the potential 297 m above the surface?

(b) What is the potential at the top of Pike's Peak, 14,110 ft above sea level? (Hint: Do not assume that the surface in part (a) is at sea level.)

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