Electrical Machines In an alternator the voltage generated per phase is proportional to frequency of waveform. All of these number of turns in coil. flux per pole. frequency of waveform. All of these number of turns in coil. flux per pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A self-excited shunt generator fails to build up, because 1. the field circuit is open 2. The armature circuit is open 3. the residual magnetism is absent 4. The direction of rotation is wrong From these, the correct answer is 1, 3 3 only 1, 2 and 3 1, 2, 3 and 4 1, 3 3 only 1, 2 and 3 1, 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because dc machines are comparatively low rating machines. it reduces field structure iron losses it gives more uniform air-gap flux distribution commutator action is not possible otherwise dc machines are comparatively low rating machines. it reduces field structure iron losses it gives more uniform air-gap flux distribution commutator action is not possible otherwise ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors are suitable for computer printer drive ? Stepper motor. Reluctance motor. Hysteresis motor. Shaded pole motor. Stepper motor. Reluctance motor. Hysteresis motor. Shaded pole motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as V² f f² V V² f f² V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine windings are short pitched full pitched either of these None of these short pitched full pitched either of these None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS