The largest lightning strikes have peak currents of around 250 kA, flowing in essentially cylindrical channels of

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The largest lightning strikes have peak currents of around 250 kA, flowing in essentially cylindrical channels of ionized air. How far from such a flash would the resulting magnetic field be equal to Earth’s magnetic field strength, about 50 μT?

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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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