Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle? 10° 45° 60° 30° 10° 45° 60° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Stray loss. Hysteresis loss. Copper loss. Eddy current loss. Stray loss. Hysteresis loss. Copper loss. Eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be less than 30 W zero watt 30 W more than 30 W less than 30 W zero watt 30 W more than 30 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between no load voltage and armature current short circuit current and armature current no load voltage and field current short circuit current and field current no load voltage and armature current short circuit current and armature current no load voltage and field current short circuit current and field current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a seperately excited DC Motor if field current is increased, it will Reduce armature heating. Reduce starting torque. Increase acceleration duration. Increase speed Reduce armature heating. Reduce starting torque. Increase acceleration duration. Increase speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? Induction motors DC Shunt Motor Both Synchronous and Induction motor Synchronous motors Induction motors DC Shunt Motor Both Synchronous and Induction motor Synchronous motors ANSWER DOWNLOAD EXAMIANS APP
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