A Copper Wire of Radius 0

A copper wire of radius 0.5 mm at the Earth's equator carries a current.Assuming that the magnetic field of the earth of 0.5 G at the equator is parallel to the surface of the Earth and that the current flows to the east,what is the current necessary in the wire to allow it to levitate?

A) 420 A
B) 120 A
C) 2340 A
D) 1370 A
E) 760 A

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free