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

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856Electrical EngineeringMedium

AField control method

BArmature control method

CVoltage control method

DAll above methods

Correct answer

B. Armature control method

Explanation

The correct answer is Armature control method.

Which of the following method of speed control of D.C. machine will offer minimum efficiency? - Answer and Explanation | Academy of Pakistan