Suppose a straight 1.37 mm diameter copper wire could just \"float\" horizontall

Question

Suppose a straight 1.37 mm diameter copper wire could just "float" horizontally in air because of the force of the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 5.00 10-5 T. What current would the wire carry?

Suppose a straight 1.37 m diameter copper wire could just float" horizontally in air because of the force of the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 5.00 x 10-5 T. What current would the wire carry? Does the answer seem feasible? yes Explain, briefly

Explanation / Answer

Yes, To calculate current length of the wire, mass of the wire required.

Magnetic force BIL=mg (weight).

Current i=mg/BL.

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