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Question

Find the potential V of an electrostatic field E=a(y^i+x^j), where a is a constant.


Your Answer
A
axy+C
Correct Answer
B
axy+C
Your Answer
C
axy
Your Answer
D
axy

Solution

The correct option is B axy+C
dV=^E.^dr
dV=a(y^i+x^j).(dx^i+dy^j)
dV=a(ydx+xdy)
dV=ad(xy)
V=axy+C

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