Question

A current of 4Amp flows through a bulb.how many electrons flow through the bulb on a time of 2 hrs​

Answer 1

Hoping this explanation is useful

Explanation:

We know that i=q/t

So here i=4

t=2hrs=2×3600s=7200s

So q=i×t=4×7200=28800

But we know that charge of one electron is 1.6×10^-19c

So total no of wlectrons flown throughis equal to

28800÷1.6×10^-19=1800×10^19

=18×10^21 electrons are flown.