A Geologist Measures the Earth's Electric Field near the Surface

question 33

Multiple Choice

A geologist measures the Earth's electric field near the surface, and finds that equipotential lines 100 V apart are at a distance of 75 cm from each other.Assuming the electric field is uniform, what is its magnitude?

• A)130 V/m
• B)100 V/m
• C)75 V/m
• D)1.3 V/m
• E)0.75 V/m

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