Answered: A transmission line strung 9 m above… | bartleby

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A transmission line strung 9 m above the ground carries a current of 400 A. What is the magnetic field on
the ground directly below the wire?
Hint
Magnetic field due to the transmission line is
For comparison, the geomagnetic field is around 0.05 mT (varies by latitude). Does the transmission line
significantly affect the magnetic field in the area near it?
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