Question

A 2V cell is connected to a 1ohm resistor .how many electrons come out of the negative terminal of the cell in 2min?

Answer 1

V=RI
I=ne/t
Therefore V=Rne/t
n=Vt/Re
n=(2×2×60)/(1×1.6×10^(-19))
n=1.5 ×10^21