You are standing 4.5 m directly below a high-voltage power line, and you have a detailed map

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You are standing 4.5 m directly below a high-voltage power line, and you have a detailed map indicating that the power line runs exactly north–south. Your compass needle does not align with the power line, however, but instead makes an angle of 32° toward the east with respect to the power line’s direction.
(a) Knowing that the magnitude of the Earth’s magnetic field is approximately 5.0x10-5 T, determine the magnitude and direction of the magnetic field produced by the power line at ground level.
(b) How much current is being carried in the power line?
(c) Is the current fl owing toward the north or toward the south?

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