Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the hysteresis loss. weight of the stator. eddy current loss. both of the above. hysteresis loss. weight of the stator. eddy current loss. both of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? Low load. Full load. None of these. No load. Low load. Full load. None of these. No load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 75°. about 115°. 90°. 0°. about 75°. about 115°. 90°. 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? None of these Cross magnetization Magnetization Demagnetization None of these Cross magnetization Magnetization Demagnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors with armature resistance of 0.6 ohm. Calculate the starting current flowing through the armature if the supply voltage is 240 volt. 320 Amp. 0.5 Amp. 400 Amp. 800 Amp. 320 Amp. 0.5 Amp. 400 Amp. 800 Amp. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to reduce hunting improve starting torque All of these improve the power factor reduce hunting improve starting torque All of these improve the power factor ANSWER DOWNLOAD EXAMIANS APP
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