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How much work moves a 2 µC charge through a potential difference of 50 V?
A25 µJ
B1 mJ
C100 µJ
D0.4 µJ
Answer & Solution
Correct answer: C. 100 µJ
W = qΔV = 2×10⁻⁶ × 50 = 1×10⁻⁴ J, which is 100 µJ.
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