How much current must pass through a horizontal power transmission cable in order for the magnetic...

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How much current must pass through a horizontal power transmission cable in order for the magnetic...

How much current must pass through a horizontal power transmission cable in order for the magnetic field at a location 20 m directly below it to be equal to the Earth's magnetic field, which is approximately 9.0×10−5T?

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How much current must pass through a horizontal power transmission cable in order for the magnetic...

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