Electrical Machines Hysteresis loop represents the area of eddy current loss hysteresis loss total iron losses copper loss eddy current loss hysteresis loss total iron losses copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V dc series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 Ω. The value of resistance which must be added to obtain rated torque at 1000 rpm is 6 Ω 2.2 Ω 5.7 Ω 1.9 Ω 6 Ω 2.2 Ω 5.7 Ω 1.9 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor is more than normal without wastage of electrical energy _____________ is used. None of above. Rheostatic control. Any of above method. Ward Leonard control. None of above. Rheostatic control. Any of above method. Ward Leonard control. 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∝ P³ T is independent of P T∝ P T∝ P² T∝ P³ T is independent of P T∝ P T∝ P² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit in a transformer is prefered with direct current rated transformer voltage rated transformer current high frequency supply direct current rated transformer voltage rated transformer current high frequency supply ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has negative speed regulation? Shunt motors. Both B and C. Series motors. Differential compound motors. Shunt motors. Both B and C. Series motors. Differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS