Solved: A motor run by a 9.0-V battery has a 20-turn
Chapter 20, Problem 80GP(choose chapter or problem)
Problem 80GP
A motor run by a 9.0-V battery has a 20-turn square coil with sides of length 5.0 cm and total resistance 28 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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