If `10 power 9 ` electrons move out of body to another body every seconds. How much time is required to get a total charges of 1 C on the other body?

Explanation

In one second `10^(@) ` electrons move out the body. Thereofore ther chages given out in second is ` 1.6 xx 10 ^(-19) xx 10 ^(@) C. `The time required to accumulate a charges of 1 C can then be estimated to be ` 1C + ( 1.6 xx 10^(-10) C//s) = 6.25 xx10 ^(9)s = 6.25 xx 10 ^(9) +( 365xx 24xx 3600) ` years = 198 years .Thus to collect a charges of one coulomb from a body from which `10^(9) ` electrons move out very seconds. we will need approximately 200 years.