Thunderclouds may develop a voltage difference of about
Chapter 17, Problem 90(choose chapter or problem)
Thunderclouds may develop a voltage difference of about Given that an electric field of is required to produce an electrical spark within a volume of air, estimate the length of a thundercloud lightning bolt. [Can you see why, when lightning strikes from a cloud to the ground, the bolt has to propagate as a sequence of steps?]
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