Question: P 2 . A surveyor is using a compass a distance r = 2 0 ft below a power line in which there is a

P2. A surveyor is using a compass a distance r =20 ft below a power line in which there is a steady current of I =100 A. Will this interfere seriously with the compass reading? The horizontal component of the earths magnetic field at the site is 0.20 Gauss.P2. A surveyor is using a compass a distance r =20 ft below a power line in which there is a steady current of I =100 A. Will this interfere seriously with the compass reading? The horizontal component of the earths magnetic field at the site is 0.

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