A straight wire of length 30cm and mass 60 mg lies in a direction 30° east of no1th. The earth's magnetic field at this site is horizontal and has a magnitude of 0.8 G. The current must be passed through the wire so that it may float in air is (g = 10 m//s^(2))

A straight wire of length 30cm and mass 60 mg lies in a direction 30°

1.	A straight wire of length 30cm and mass 60 mg lies in a direction 30° east of no1th. The earth's magnetic field at this site is horizontal and has a magnitude of 0.8 G. The current must be passed through the wire so that it may float in air is (g = 10 m//s^(2))
Answer» 5A 25A 50A 75A Answer :C

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A straight wire of length 30cm and mass 60 mg lies in a direction 30° east of no1th. The earth's magnetic field at this site is horizontal and has a magnitude of 0.8 G. The current must be passed through the wire so that it may float in air is (g = 10 m//s^(2))

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