if one mole of electrons passes through a fixed point a conductor in a specific time duration then how much electric charge has passed through it
Answers
Answer:
The measurement must be done by taking time into consideration. Like speed, 120km does not mean much, but 120km/h makes more sense.
So, we must convert amps to electrons per second, and we can do it with the following mathematical equation:
Express the current in amperes as coulombs per second. One ampere represents a flow of one coulomb of electrical charge per second.
Divide 1 coulomb by the charge of a single electron to get the number of electrons in a coulomb of charge. An electron has a charge of 1.60 x 10^-19 coulombs, so it takes 6.25 x 10^18 electrons to make up 1 coulomb of charge. (1/1.60 x 10^-19).
Multiply current in coulombs per second by 6.25 x 10^18 electrons per coulomb. The result is the number of electrons per second in the current.
We now know that there are 6.25 x 10^18 electrons per coulomb, therefore we can convert amps to electrons-per-second with a single calculation: Just multiply by 6.25 x 10^18.
Getting a grasp of the amounts, 1 amp flowing for 1 second through a single point in the wire, totals an amount of 6250000000000000000 electrons past that point.