Electrical Machines In a single phase induction motor, the starting torque developed is proportional to 1/V supply voltage V V² 1/V² 1/V supply voltage V V² 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic circuit of a dc shunt generator with negligible armature resistance and brush contact voltage drop remains unsaturated when it delivers full-load current at rated terminal voltage. The brushes are kept in the interpolar axis and speed is maintained constant. When the load is switched off, the terminal voltage would decrease become zero remain the same increase decrease become zero remain the same increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will burn. run at very high speed. run at very low speed. start haunting. burn. run at very high speed. run at very low speed. start haunting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of electromagnetic induction. self or mutual induction. self induction. mutual induction. electromagnetic induction. self or mutual induction. self induction. mutual induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. speed. power factor. air gap flux. magnetizing current. speed. power factor. air gap flux. magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator core loss Rotational loss All of these Stator copper loss Stator core loss Rotational loss All of these Stator copper loss ANSWER DOWNLOAD EXAMIANS APP
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