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Q#1 Phase Controlled Converter GATE EE 2004 MCQ +2 marks -0.66 marks

A single-phase half wave controlled rectifier is driving a separately excited dc motor.  The dc motor has a back emf constant of 0.5 V/rpm. The armature current is 5A without any ripple. The armature resistance is 2Ω.

The converter is working from a 230 V, single-phase ac source with a firing angle of 30°. Under this operating condition, the speed of the motor will be

339 rpm

359 rpm

366 rpm

386 rpm

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