alleryFind work done to bring a +2 µC charge from infinity to a point where V = 50 V:
A10 µJ
B100 µJ
C2.5 µJ
D25 µJ
Answer & Solution
Correct answer: B. 100 µJ
We have W = qV.
That is W = (2 × 10⁻⁶)(50).
That is W = 10⁻⁴ J.
So W = 100 µJ.
(Work done by external agent to bring positive charge into a positive potential region.)
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