28. Magnetic Fields and Forces
Force and Torque on Current Loops
4:59 minutes
Problem 27.63
Textbook Question
Textbook QuestionA motor run by a 9.0-V battery has a 20-turn square coil with sides of length 5.0 cm and total resistance 24 Ω . When spinning, the magnetic field felt by the wire in the coil is 0.020 T. What is the maximum torque on the motor?
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