Electrical Machines In a DC motor under constant terminal voltage what is the relation between torque (Te) and power (P) T∝ P T∝ P² T∝ P³ T is independent of P T∝ P T∝ P² T∝ P³ T is independent of P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type motors are preferred for lathes? DC shunt motors. Squirrel Cage induction motor. Either A or B. Synchronous motor. DC shunt motors. Squirrel Cage induction motor. Either A or B. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
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 If the frequency of input voltage of a transformer is increased keeping the magnitude of voltage unchanged, then both hysteresis loss(Ph) and eddy current loss(Pe) will increase Ph will increase but Pe will decrease Pe will increase but Ph will decrease Ph will decrease but Pe will remain same both hysteresis loss(Ph) and eddy current loss(Pe) will increase Ph will increase but Pe will decrease Pe will increase but Ph will decrease Ph will decrease but Pe will remain same ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are both A and B. rating of generators should be same. polarities should be same. terminal voltage should be same. both A and B. rating of generators should be same. polarities should be same. terminal voltage should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: under leading pole tip. under trailing pole tip. under the interpole. pole core. under leading pole tip. under trailing pole tip. under the interpole. pole core. ANSWER DOWNLOAD EXAMIANS APP
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