28. Magnetic Fields and Forces
Magnets and Magnetic Fields
6:51 minutes
Problem 27.53
Textbook Question
Textbook Question(II) A long copper strip is 3.0 cm wide and thick. When it carries a steady 42-A current in a 0.80-T magnetic field it produces a 6.5-μV Hall emf. Determine: (a) the Hall field in the conductor; (b) the drift speed of the conduction electrons; (c) the density of free electrons in the metal.
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