Question

How many electrons flow per second through a conductor carrying a current of 0.5 mA

Answer 1

Answer:

3.12 * 10^18 electrons per second

Explanation:

As by definition of ampere

1 A = 1 coulomb per second.

0.5 A = 0.5 coulomb per second

1 e = 1.6 x 10^-19 coulomb

1 coulomb = 6.24 x 10^18 electrons.

 0.5 A = 0.5 x 6.24 x 10^18  per second

0.5 A = 3.12 * 10^18 per second  

So, 0.5 amp for 1 second will have 3.12 * 10^18 electrons pass through.