An electric field E → = 25 i ^ + 30 j ^ N C - 1 exists in a region of space. If the potential at the origin is taken to be zero then the potential at x = 2 m , y = 2 m is:

Question

An electric field E → = 25 i ^ + 30 j ^ N C - 1 exists in a region of space. If the potential at the origin is taken to be zero then the potential at x = 2 m , y = 2 m is:, - 110 J C - 1, - 140 J C - 1, - 130 J C - 1, - 120 J C - 1

MARKS App · Accepted Answer

∵ ∆ V = - E → . ∆ r → V - 0 = - 25 i ^ + 30 j ^ . 2 i ^ + 2 j ^ = - 50 + 60 V = - 110 v o l t = - 110 J C - 1

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