Q. If field current is increased in shunt dc motor, the speed of the motor ………………..?

A
Remains same
B
Increases
C
Decreases.
D
None of the above.
Solution:
  • As a shunt field current If decreases, f also decreases and the speed rises as speed is inversely proportional to flux.
  • A DC shunt motor is used in applications where a constant speed and high torque is required, such as a paper manufacturing unit, Lathe Machines, Centrifugal Pumps, Fans, Lifts, Weaving Machine, Spinning machines, Blowers Conveyors etc.
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