Electrical Machines Flux density under leading pole tips in case of generator will decrease either increase or decrease None of these increase decrease either increase or decrease None of these increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on Z. P and Z. none of these. P. Z. P and Z. none of these. P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be Around 100 %. Around 90 % Any where between 75 % and 90 %. Less than 50 % Around 100 %. Around 90 % Any where between 75 % and 90 %. Less than 50 % ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC motor under constant terminal voltage what is the relation between torque (Te) and power (P) T∝ P T∝ P³ T∝ P² T is independent of P T∝ P T∝ P³ T∝ P² T is independent of P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under trailing pole tips in case of generator will increase decrease None of these either increase or decrease increase decrease None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be 50. 80. 18. 36. 50. 80. 18. 36. ANSWER DOWNLOAD EXAMIANS APP
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