Physics, 17.03.2020 04:26 axxpjr12

Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. A typical high-voltage transmission line is 20 m off the ground and carries a current of 200 A.1. Estimate the magnetic field strength on the ground underneath such a line.2. What percentage of the earth’s magnetic field does this represent?

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