Question

The current flowing through a conductor
0.2 A / 30 seconds through the cross section of that conductor
How many electronswill flow? The charge of an electron
1.6 x 10-19 C​

Answer 1

• • e = 1.6 * 10-19 Coulombs

• • current I = 0.2 Amperes .

• time duration t= 30 seconds

Charge = Q = current * time duration = [* t = 0.2 sec * 30 sec= 6 coulombs

number of electrons that are equal to this charge = 6 Coulombs / 1.6 * 10-19 coulombs

= 3.75 * 1019

If this many electrons pass through a cross section of the conductor in 30 seconds time