Answer: You want to get an idea of the magnitude of
Chapter 20, Problem 91GP(choose chapter or problem)
Problem 91GP
You want to get an idea of the magnitude of magnetic fields produced by overhead power lines. You estimate that a transmission wire is about 13 m above the ground. The local power company tells you that the lines operate at 240 kV and provide a maximum power of 46 MW. Estimate the magnetic field you might experience walking under one such power line, and compare to the Earth’s field.
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