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Two identical coaxial coils of wire of radius 39.7 cm are directly on top of each other, separated by a 3.03 mm gap. The lower coil is on a flat table and has a current i in the clockwise direction; the upper coil carries an identical current and has a mass of 52.5 g. Determine the magnitude that the current in the upper coil has to have to keep the coil levitated at its current height.

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  • Category:- Physics
  • Reference No.:- M91029611

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