A shunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, Rf, is 250 N. The resistance of the rotor, R, , is 4.40 2. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.50 A from the line. Friction losses amount to 50.0 W.

A shunt-wound DC motor with the field coils and rotor connected in parallel (Figure 1) operates from a 130 V DC power line. The resistance of the field windings, Rf, is 250 N. The resistance of the rotor, R, , is 4.40 2. When the motor is running, the rotor develops an emf E. The motor draws a current of 4.50 A from the line. Friction losses amount to 50.0 W.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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