Electrical Machines Rotating magnetic field is produced in an induction motor because of rotor winding. stator winding. None of these either stator winding or rotor winding. rotor winding. stator winding. None of these either stator winding or rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 40 A. 440 A. 400 A. 44 A. 40 A. 440 A. 400 A. 44 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for hoisting and lowering which type of motor is preferred? DC series motor. Synchronous motor. AC slip ring motor. Single phase induction motor. DC series motor. Synchronous motor. AC slip ring motor. Single phase induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers flux path completion both A and B produce working flux mechanical protection to the machine flux path completion both A and B produce working flux mechanical protection to the machine 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∝ P² T∝ P T∝ P³ T is independent of P T∝ P² T∝ P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What happens if fifth multiples of harmonics is given to induction motor? Either short circuit or open circuit occurs. Fail to start. It will rotates in reverse direction. It will rotates in normal operation. Either short circuit or open circuit occurs. Fail to start. It will rotates in reverse direction. It will rotates in normal operation. ANSWER DOWNLOAD EXAMIANS APP
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