28. Magnetic Fields and Forces
Magnetic Force on Current-Carrying Wire
7:55 minutes
Problem 27.66
Textbook Question
Textbook QuestionNear the equator, the Earth’s magnetic field points almost horizontally to the north and has magnitude B = 0.50 x 10⁻⁴ T. What should be the magnitude and direction for the velocity of an electron if its weight is to be exactly balanced by the magnetic force?
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