A surveyor is using a magnetic compass 90 m below a power
A surveyor is using a magnetic compass 9.0 m below a power line in which there is a stable current of 130 A. What is the magnetic field in microteslas at the site of the compass due to the power line?
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a surveyor is using a magnetic compass 90 m below a power line in which there is a stable current of 130 a what is the
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