Question

If a body gives out 10^9 electrons every second, how much time is required to get a total charge of 1 C from it?​

Answer 1

$\huge\bold{Solution}$

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»» Number of electrons given out by the body in one second = $10^{9}$

Charge given out by the body in one second = ne

=> $10^{9}$ × 1.6 × $10^{-19}$

= 1.6 × $10^{-10}$

Time required to get a charge of 1.6 × $10^{-10}$C

= 1 s

Time required to get a charge of 1 C

=> $\dfrac{1}{1.6 × 10^{-10}}$ s

= 6.25 × $10^{9}$ s

= $\dfrac{6.25 × 10^{9}}{365 × 24 × 3600}$ years

= 198.18 years

$<font color=red>Thus from a body emitting 10^{9} electrons per second, it will take nearly 200 years to get a charge of 1 C from that body. This shows how large is one coulomb as the unit of charge.$
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$<marquee><font color= blue>HOPE IT HELPS YOU ♥️$

Answer 2

$\huge\textbf{\underline{Physics}}$

Answer ==> 6.25 × 10^9 secs

For solutions refer to pic*

Thanks ✌