Q.
The potential at the origin is zero due to electric field E = 20i + 30j NC–1. The potential at point P(2m, 2m)
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a
1 V
b
-100 V
c
10 V
d
2 V
answer is B.
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Detailed Solution
V=-E→.dr¯=-20i+30j.2i+2j= -[40 + 60] = -100 V
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