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Question

Assume that and electric field E=30x2i exists is space. Then the potential difference VAV0 is:
(where V0 is the potential at the origin and VA is the potential at x = 2m)

A
80 V
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B
120 V
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C
-120 V
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D
-80 V
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Solution

The correct option is D -80 V
As dV=Edr
= 30x2dr

After integrating for the range of 0 to 2m, we will get the potential difference as -80 V.

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