A flash of lightning carries 10 C of charge which flows for 0.01 s. What is the current? If the voltage is 10 MV, what is the energy?
Here
Charge, Q = 10C
Voltage = 10 MV = 10 x 106V
Energy of the charge particle is given by
E = Q V
= 10 x 10 x 106
=108 J