In the return stroke of a typical lightning bolt, a current of 2.5 104 a exists for 20 ms. how much charge is transferred in this event?

500 coloumb of charge is transferred in this event.

Explanation:

We are given:

According to mole concept:

1 mole of an atom contains number of particles.

We know that:

Charge on 1 electron =

Charge on 1 mole of electrons =

To calculate the charge transferred, we use the equation:

where,

I = current passed =

q = total charge = ?

t = time = 20 ms =0.02 s         (1 ms =0.001 s)

Putting values in above equation, we get:

Thus 500 coloumb of charge is transferred in this event.