Electrical Machines In DC machine torque depends on which of the following? flux (φ) both A and B speed armature current (I) flux (φ) both A and B speed armature current (I) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generators are usually designed to develop armature voltages not exceeding 650 V because of the limitations imposed by field winding armature winding commutator starters field winding armature winding commutator starters ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening method is also called as-----------? constant power control constant current control constant torque control constant voltage control constant power control constant current control constant torque control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - φ induction motor running at full load which of these parameters is stationary with respect to the stator mmf wave? Rotor winding. Stator winding. Rotor mmf wave. Both rotor and stator winding. Rotor winding. Stator winding. Rotor mmf wave. Both rotor and stator winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are same. changes. none of above. different. same. changes. none of above. different. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb. 20 volts. 30 volts. 10 volts. 40 volts. 20 volts. 30 volts. 10 volts. 40 volts. ANSWER DOWNLOAD EXAMIANS APP
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