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 20,000 C/s, this lasts for 100 μs or less. How much charge flows between the ground and the cloud in this time? How many electrons flow during this time?

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  1. 2E4 C/s * 1E-4 s = ? C

    ? C / 1.6E-19 C/e = ? e

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