Answered: DC motor's magnetic field gets stronger…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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D1- Which DC motor's magnetic field gets stronger with an increase in mechanical load?
a) series b) shunt c) compound d) "a" and "c", not "b"
D2- The greater the mechanical load on a DC motor the faster it will turn.
a) true b) false

D3- Which of the following causes a DC shunt motor to automatically adjusts its input to take care of changes in mechanical load.
a) the speed decreases with increases in load b) the cemf decreases with increases in load c) the supply current increases due to the decrease in cemf d) all of the above

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