A question for the physicists out there:

During a thunderstorm, the potential difference between the thunderclouds and the ground builds up to [tex]1.5*10^6[/tex] V. In each stroke of lightning, 30C of charge passes between the thunderclouds and the ground. Lightning strokes to the ground occur, on average, and 2 minute intervals.
Calculate:

i) The average current between the thunderclouds and the ground,

ii) The energy transferred in each stroke of lightning.

I already know the answer, I'm just seeing who here is good at physics ;)