72) A 220V DC machine has an armature resistance of 0.5 ohm. If the armature current is 20 amps, the induced emf when the machine works as (i) generator (ii) motor will be :
Answer is:
230V, 210V
Related DC Motors MCQ - Electrician (Set-1) with Answers
Answer is:
The motor will run at high speed
Answer is:
The motor runs in dangerous speed and may bum out
Answer is:
Ward-Leonard system of speed control
Answer is: