Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss? 1/S S 1/(1-S) 1-S 1/S S 1/(1-S) 1-S ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 900 rpm 850 rpm 950 rpm 1000 rpm 900 rpm 850 rpm 950 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator if field winding attains the critical resistance the voltage generated will be zero. field winding will burn. machine will generate maximum power. machine will generate maximum voltage. the voltage generated will be zero. field winding will burn. machine will generate maximum power. machine will generate maximum voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High starting torque and low starting current is the advantage of slip ring induction motor. squirrel cage induction motor. stepper motor. hysteresis motor. slip ring induction motor. squirrel cage induction motor. stepper motor. hysteresis motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the mechanical power developed by a DC series motor is maximum? Back emf is equal to zero. Back emf is equal to half the applied voltage. None of above. Back emf is equal to applied voltage. Back emf is equal to zero. Back emf is equal to half the applied voltage. None of above. Back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the speed of a dc motor increases with load torque, then it is a differentially compounded motor permanent magnet motor comulatively compounded motor series motor differentially compounded motor permanent magnet motor comulatively compounded motor series motor ANSWER DOWNLOAD EXAMIANS APP
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