Question

Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. The maximum rate of charge flow in a lightning bolt is about 20,000C/s; this lasts for 100μs or less. How much charge flows between the ground and the cloud in this time?

Answer 1

Answer:

2C  charge will flow from ground and cloud

Explanation:

We have given rate rate of flow of charge $\frac{dq}{dt}=20000C/sec$

Time is given as $t=100\mu sec=100\times 10^{-6}=10^{-4}sec$

WE have to find the how much charge flows between the ground and cloud in this time

So the charge flow is given by $\frac{dq}{dt}\times t=20000C/sec\times 10^{-4}=2C$

So 2C  charge will flow from ground and cloud