Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 40 600 60 660 40 600 60 660 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 12 pole, 600 V, 50 Hz star connected IM has rotor resistance and stand still resistance of 0.03 Ω and 0.5 Ω respectively. The speed of maximum torque will be 450 rpm. 470 rpm. 540 rpm. 240 rpm. 450 rpm. 470 rpm. 540 rpm. 240 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Brush. Commutator. Armature. Yoke. Brush. Commutator. Armature. Yoke. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. decreased. remains unchanged. kept constant to certain value. increased. decreased. remains unchanged. kept constant to certain value. increased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is none of these. lesser than power transformer. higher than power transformer. equal as power transformer. none of these. lesser than power transformer. higher than power transformer. equal as power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc shunt motor with field weakening. dc compound motor. dc shunt with armature resistance control. dc series motor. dc shunt motor with field weakening. dc compound motor. dc shunt with armature resistance control. dc series motor. ANSWER DOWNLOAD EXAMIANS APP
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