Electrical Machines The principle of dynamically induced emf is utilized in transformer. thermocouple. choke. generator. transformer. thermocouple. choke. generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V, 50 Hz, 4 pole single phase induction motor is rotating in the clockwise ( forward ) direction at a speed of 1425 rpm. If the rotor resistance at standstill is 7.8 Ω. Then the effective rotor resistance in the backward branch of the equivalent circuit will be 8 Ω. 4 Ω. 10 Ω. 2 Ω. 8 Ω. 4 Ω. 10 Ω. 2 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum starting torque is obtained, rotor power is ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During hunting of a synchronous motor harmonic are developed in the armature circuit. field excitation increases. negative phase sequence currents are generated. damper bar develops torque. harmonic are developed in the armature circuit. field excitation increases. negative phase sequence currents are generated. damper bar develops torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor is used in paper machines? DC series motor. DC compound motor. Separately excited DC motor. DC Shunt motor. DC series motor. DC compound motor. Separately excited DC motor. DC Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by increasing field current. reversing field electric current as well as direction of rotation. any of above. reversing the field current. increasing field current. reversing field electric current as well as direction of rotation. any of above. reversing the field current. ANSWER DOWNLOAD EXAMIANS APP
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