Question

If 10^10 electrons are acquired by a body every second

Answer 1

your question is incomplete. a complete question is ----> If 10^10 electrons are acquired by a body every second, the time required for the body to get a total charge of 1C will be.

solution : Let time taken to get a total charge of 1C is t.

number of electrons acquired by a body is 10^10 per second.

so, total electrons acquired in t time = 10^10 t

we know, charge on each electron = 1.6 × 10^-19 C

so, charge on 10^10t electron = 10^10 × 1.6 × 10^-19 t

= 1.6 × 10^-9t

given that total charge = 1C

or, 1.6 × 10^-9t C = 1C

or, t = 1/1.6 × 10^9 = 10/1.6 × 10^8 sec

= 6.25 × 10^8 sec