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Two identical wires with a weight of 4.75E+4 N/m, are located one above the other, in a vertical plane above the surface of the earth. The wires are aligned north-south so that the earths's magnetic field will not affect them. Assume the distance of separation is 0.11 m and that they will carry the same current, but in opposite directions.

What must be the value of the current for the lower wire to levitate the upper wire?

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  • Category:- Physics
  • Reference No.:- M91673418

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