Question: A nearly horizontal dc power line in the midlatitudes of
A nearly horizontal dc power line in the midlatitudes of North America carries a current of 1000 A directly eastward. If the Earth’s magnetic field at the location of the power line is northward with a magnitude of 5.0 x 10-5 T at an angle 45o of below the horizontal, what are the magnitude and direction of the magnetic force on a 15-m section of the line?
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