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What is the charge on 5 × 1010 electrons?
A8 × 10–9 C
B8 × 10–29 C
C3.2 × 10–9 C
D1.25 × 10–9 C
Answer & Solution
Correct answer: A. 8 × 10–9 C
Magnitude = 5 × 1010 × 1.6 × 10–19 = 8 × 10–9 C, and the sign is negative.
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