Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor decreases. None of these remains same. increases. decreases. None of these remains same. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the mechanical power developed by a DC series motor is maximum? None of above. Back emf is equal to half the applied voltage. Back emf is equal to zero. Back emf is equal to applied voltage. None of above. Back emf is equal to half the applied voltage. Back emf is equal to zero. Back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? core loss only both 1 and 2 Copper loss windage and friction loss core loss only both 1 and 2 Copper loss windage and friction loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard system, the lower limit of the speed imposed by Field resistance. Residual magnetism of the generator. None of above. Armature resistance. Field resistance. Residual magnetism of the generator. None of above. Armature resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward-Leonard control is basically a ___________ control method. Field diverter control. Armature resistance control. Armature voltage control. Field control. Field diverter control. Armature resistance control. Armature voltage control. Field control. ANSWER DOWNLOAD EXAMIANS APP
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