Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? decrease None of these increase either increase or decrease decrease None of these increase either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature of DC machine is made of silicon steel. insulating material. non-ferrous material. conducting material. silicon steel. insulating material. non-ferrous material. conducting material. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as zoom. hum. magnetostriction. boo. zoom. hum. magnetostriction. boo. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the main field armature core All of these pole shoe main field armature core All of these pole shoe 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. Any of above method. Ward Leonard control. Rheostatic control. None of above. Any of above method. Ward Leonard control. Rheostatic control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 100W 80W 40W 60W 100W 80W 40W 60W ANSWER DOWNLOAD EXAMIANS APP
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