Electrical Machines Which of the following represents the pitch factor? Cos α² sin (α/2) Cos α Cos (α/2) Cos α² sin (α/2) Cos α Cos (α/2) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron loss in a transformer mainly occurs in steel core in transformer. iron made tank of transformer. transformer insulating oil. winding of transformer. steel core in transformer. iron made tank of transformer. transformer insulating oil. winding of transformer. 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. 240 V. 220 V. 280 V. 150 V. 240 V. 220 V. 280 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is between 50% and 90%. more. same. less than 50%. between 50% and 90%. more. same. less than 50%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for generation of voltage. development of torque. commutation. electromechanical energy conversion. generation of voltage. development of torque. commutation. electromechanical energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is zero. normal speed. less than normal speed. more than normal speed. zero. normal speed. less than normal speed. more than normal speed. ANSWER DOWNLOAD EXAMIANS APP
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