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If 10^(9) electrons move out of a body t...

If `10^(9)` electrons move out of a body to another body every second, then the time required to get a total charge of 1 C on the other body is

A

200 years

B

100.years

C

198 years

D

210 years

Text Solution

Verified by Experts

The correct Answer is:
A
198 years
Explanation: The charge given out in one second `=1.6xx10^(-10)`. The time required to accumulate a charge of 1 C.
`(1C)/(1.6xx10^(-10)Cs^(-1))=6.25xx10^(9)s`
`=(6.25xx10^(9)s^(-1))/(356xx24xx3600)`
`=198.18` years
=198 years.
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