You use a potentiometer (voltmeter) to measure the potential at various points i

Question

You use a potentiometer (voltmeter) to measure the potential at various points in a region and from your measurements construct the diagram below of the equipotential lines. The electrical field in this region is best described as Pointing from the bottom to the top of the figure, uniform in strength. Pointing from left to right, decreasing in strength as you move to the right Pointing from the top to the bottom of the figure, uniform in strength. Pointing from right to left, decreasing in strength as you move to the left Q Uniform in strength, pointing from right to left Uniform in strength, pointing from left to right

Explanation / Answer

The electric field is given by

(E = - Delta V/Delta x)

The electric potential changes uniformly (meaning the electric field is going to be uniform in strength), decreasing to the right. That means the electric field will point to the right. So,

Option f: Uniform in strength, point from left to right.

Hope this helps

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