Electrical Machines If a DC Series motor is connected across an AC supply it will burn. run at lower speed. run at normal speed. not run. burn. run at lower speed. run at normal speed. not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under trailing pole tips in case of generator will None of these either increase or decrease increase decrease None of these either increase or decrease increase decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Air core transformer as compared to iron core transformer, has less magnetic core loss. more magnetic core loss. more copper loss. no magnetic core loss. less magnetic core loss. more magnetic core loss. more copper loss. no magnetic core loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? 2. 6. data provided is insufficient. 4. 2. 6. data provided is insufficient. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque is proportional to which of the following? armature current(Ia) flux(φ) both A and B None of these armature current(Ia) flux(φ) both A and B None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will run at very high speed. run at very low speed. start haunting. burn. run at very high speed. run at very low speed. start haunting. burn. ANSWER DOWNLOAD EXAMIANS APP
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