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If 10^9 electrons leave a body every second, roughly how long to lose 1 C?
AAbout 2 years
BAbout 20 years
CAbout 200 years
DAbout 2000 years
Answer & Solution
Correct answer: C. About 200 years
Charge lost per second is 1.6 x 10^-10 C, so 1 C takes 6.25 x 10^9 s, which is close to 200 years.
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