The charge of an electron is -1.60x10-19 c. a current of 1 a flows in a wire carried by electrons. how many electrons pass through a cross section of the wire each second?

electrons pass through a cross section of the wire each second.

Explanation:

According to mole concept:

1 mole of an atom contains number of particles.

Given : Charge on 1 electron =

Charge on 1 mole of electrons =

To calculate the charge passed we use the equation:

where,

I = current passed = 1 A

q = total charge = ?

t = time required = 1 sec

Putting values in above equation, we get:

When 96500C of electricity is passed , the electrons passed =

1 C of electricity is passed , the electrons passed =

Hence, electrons pass through a cross section of the wire each second.