The speed of a DC motor can be changed by varying

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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A;IVI A
Choose the correct answer (20 Marks)
The speed of a DC motor can be
changed by varying-
armature resistance circuit
flux per pole
voltage source
all of above
A thicker wire is used in the DC
series field winding than DC shunt
field winding in DC machines. *
because it carries the load current.
to prevent mechanical vibrations.
to provide strength.
to produce large flux.
The external characteristic of a shunt
Nonorator can be ohtainod diroctlv
Transcribed Image Text:A;IVI A Choose the correct answer (20 Marks) The speed of a DC motor can be changed by varying- armature resistance circuit flux per pole voltage source all of above A thicker wire is used in the DC series field winding than DC shunt field winding in DC machines. * because it carries the load current. to prevent mechanical vibrations. to provide strength. to produce large flux. The external characteristic of a shunt Nonorator can be ohtainod diroctlv
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