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Lightning bolts can carry currents up to approximately 20 kA. We can model such a current as
the equivalent of a very long, straight wire.
(a) If you were unfortunate enough to be 5.1 m away from such a lightning bolt, how large a
magnetic field would you experience?
(b)How does this field compare to one you would experience by being 5.1 cm from a long,
straight household current of 5 A?
Transcribed Image Text:Lightning bolts can carry currents up to approximately 20 kA. We can model such a current as the equivalent of a very long, straight wire. (a) If you were unfortunate enough to be 5.1 m away from such a lightning bolt, how large a magnetic field would you experience? (b)How does this field compare to one you would experience by being 5.1 cm from a long, straight household current of 5 A?
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