Which of the following method of speed control of D.C. machine will offer minimum efficiency ? - Study24x7
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Goraksha Dadhich
26 Mar 2019 10:10 AM study24x7 study24x7

Which of the following method of speed control of D.C. machine will offer minimum efficiency ?

A

Voltage control method

B

Field control method

C

Armature control method

D

All above methods

Banking Railways UPSC Sciences
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