Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? S 1/S 1/(1-S) 1-S S 1/S 1/(1-S) 1-S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator the voltage generated per phase is proportional to frequency of waveform. number of turns in coil. flux per pole. All of these frequency of waveform. number of turns in coil. flux per pole. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 220 V. 240 V. 150 V. 280 V. 220 V. 240 V. 150 V. 280 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. The highest speed of the alternators is 3600 rpm. 600 rpm. 500 rpm. 3000 rpm. 3600 rpm. 600 rpm. 500 rpm. 3000 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as 1.0. 3 to 5. 1.5 to 2. 2 to 3. 1.0. 3 to 5. 1.5 to 2. 2 to 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of squirrel cage induction motor is low at heavy loads only low at rated load only low at light loads only both A and B low at heavy loads only low at rated load only low at light loads only both A and B ANSWER DOWNLOAD EXAMIANS APP
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