Question

What number of electrons will flow in one minute through a conductor that carries 1 Ampere current?

(a) 5.2*10^20

(b) 4.2*10^20

(c) 3.7*10^20

(d) 3.7*10^19

This question was posed to me in homework.

This is a very interesting question from Basic Properties of Electric Charge in portion Charges and Fields of Physics – Class 12

Answer 1

The correct option is (c) 3.7*10^20

To elaborate: 1 Ampere means 1 Coulomb per second. So the number of electrons flow per second is \((\frac {1}{1.602*10^{-19}})\). Therefore number of electron flow in one minute =\(\frac {1}{1.602*10^{-19}}\)*60 =3.7*10^20.The number will be 60 times more if we have to calculate the number of electron flow in an hour.