Question

A potential difference of 6v is applied across a conductor of a resistance 3ohm . calculate the number of electrons flowing through it one second .

Answer 1

Answer

V=6v

R=3ohm

I=V/R

I=6/3=2A

Now,

I=ne/t

where, n=no. of electrons

e= Charge on an electron

t = time

e=1.6*10⁻¹⁹C

I=n*1.6*10⁻¹⁹/1

n=I/1.6*10⁻¹⁹

n=2*10¹⁹/1.6        (I=2)

n= 1.25*10¹⁹

Explanation: