When the coil of a motor is rotating at maximum speed, the current in the windings is 5.8 A. When the motor is first turned on, the current in the windings is 11.47 A. If the motor is operated at 120 V, calculate the resistance of the windings. The resistance, Rcoil = 10.46 Units Ω Calculate the back emf in the coil at maximum speed. The back emf, Eback = 60.33 What is the current in the windings if the speed of the motors is half of its maximum value? The current, I = 2.88 Units V x Units A

When the coil of a motor is rotating at maximum speed, the current in the windings is 5.8 A. When the motor is first turned on, the current in the windings is 11.47 A. If the motor is operated at 120 V, calculate the resistance of the windings. The resistance, Rcoil = 10.46 Units Ω Calculate the back emf in the coil at maximum speed. The back emf, Eback = 60.33 What is the current in the windings if the speed of the motors is half of its maximum value? The current, I = 2.88 Units V x Units A

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter31: Faraday’s Law

Section: Chapter Questions

Problem 31.48P: A motor in normal operation carries a direct current of 0.850 A when connected to a 120-V power...

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