Question

3 ampire current is passing through wire in 5 second . what will be the number of electron through that cross section area.​

Answer 1

Answer:

We have a relation between charge and current as

Charge=Current×time i.e Q=i×t.

Now we have current =10amp & time=1sec from given data.

Therefore charge Q=10×1=10 coulombs.

Again we have a relation between charge and no of electrons

I.e no of electrons= total charge/1.6×10^-19.

So, no of electrons=( 10C/1.6×10^-19 )=6.25×10^19 electrons.

Therefor, 6.25×10^19 electrons will flow through a copper wire carrying 10amps current for 1sec.

Thankyou!!