Electrical Machines An IM cannot run at synchronous speed because rotor torque will not be produced. none of above. induction motor will become synchronous motor. air friction will prevent it. rotor torque will not be produced. none of above. induction motor will become synchronous motor. air friction will prevent it. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Both 1 and 2 Hysteresis losses Copper losses Eddy current losses Both 1 and 2 Hysteresis losses Copper losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The external resistance to be added in the armature circuit to limit the armature current to 125% of its rated value is 31.1 Ω 31.9 Ω 15.9 Ω 15.1 Ω 31.1 Ω 31.9 Ω 15.9 Ω 15.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eddy current loss will depends on Frequency Flux density Thickness All of these Frequency Flux density Thickness All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 stack stepper motor has 12 teeth on stator as well as on rotor. Determine the step size when each stack excited? 30°. 10°. 24°. 45°. 30°. 10°. 24°. 45°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all of these. one dark two bright. all dark lamp method. all bright lamp method. all of these. one dark two bright. all dark lamp method. all bright lamp method. ANSWER DOWNLOAD EXAMIANS APP
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