8. A motors draws 2 A of current when running at full speed and connected to a 120 Volt line. Suppose the same motor is connected to a 220 Volt power source and as the result it runs 1.4 times faster than its full speed and draws 9 A. What is the armature resistance of the motor? A. 7.4 Ohms B. 8.4 Ohms C. 9.4 Ohms D. 10.4 Ohms E. 11.4 Ohms
8. A motors draws 2 A of current when running at full speed and connected to a 120 Volt line. Suppose the same motor is connected to a 220 Volt power source and as the result it runs 1.4 times faster than its full speed and draws 9 A. What is the armature resistance of the motor? A. 7.4 Ohms B. 8.4 Ohms C. 9.4 Ohms D. 10.4 Ohms E. 11.4 Ohms
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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Transcribed Image Text:8. A motors draws 2 A of current when running at full speed and connected to a 120 Volt line.
Suppose the same motor is connected to a 220 Volt power source and as the result it runs 1.4 times
faster than its full speed and draws 9 A. What is the armature resistance of the motor?
A. 7.4 Ohms
B. 8.4 Ohms
C. 9.4 Ohms
D. 10.4 Ohms
E. 11.4 Ohms
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