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Part A How much current must pass through a horizontal power transmission cable in order for the magnetic field at a location 27 m directly

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Part A How much current must pass through a horizontal power transmission cable in order for the magnetic field at a location 27 m directly below it to be equal to the Earth's magnetic field, which is approximately 3.0 x 10 T? Express your answer to two significant figures and include appropriate units. HA O E ? Value Units Submit Request

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