Question

If 10^9 electrons move out of a body to another body every second. How much time is required to get a total charge of 1C on the other body?

Answer 1

Hence the answer is 6.25 × 10^8.
Hope you understand calculations.

Answer 2

Answer:

197.93 years are required to get a total charge of 1C on the other body.

Explanation:

The charge on electron with $10^{9} \mathrm$ moves out of the body every second to another body. Time taken to get a 1 C of charge on the other body be calculated as following –

As we know that, the 1 C =  $\bold{6.242 \times 10^{18}}$ electrons

Thereby, applying unitary method, we have –

$10^{9} \mathrm$ 9 electrons moves out every second

1 electron moves out in  $1 / 10^{9}$ seconds

1 C will be moved out in $\left(\frac{1}{10^{9}} \times 1 C\right)$ seconds

$6.242 \times 10^{18}$ electron moved out in $\frac{1}{10^{9}} \times 6.242 \times 10^{18}$

Therefore time taken will be $6.242 \times 10^{9}$ seconds

Time = $6.242 \times 10^{9}$ seconds = $\left(6.242 \times 10^{9}\right) / 60 \times 60 \times 24 \times 365$

Time = 197.93 years.