Emf currents in dc transmission lines can be 100 a or more, Ask an Expert

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EMF. Currents in dc transmission lines can be 100 A or more. Some people have expressed concern that the electromagnetic fields (EMFs) from such lines near their homes could cause health dangers.

Part A

For a line with current 170A and at a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? Express your answer in teslas.

Part B

What magnetic field does the line produce at ground level as a percent of the earth's magnetic field, which is 0.50 gauss.

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Reference No.:- M91676500

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