Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. kept constant to certain value. decreased. increased. remains unchanged. kept constant to certain value. decreased. increased. remains unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between short circuit current and field current no load voltage and field current no load voltage and armature current short circuit current and armature current short circuit current and field current no load voltage and field current no load voltage and armature current short circuit current and armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of transformer core is made of cast steel. wrought iron. cast iron. silicon steel. cast steel. wrought iron. cast iron. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 440 V, 3-phase, 10 pole and 50 HZ synchronous motor delivering a torque of 50 N-m, delivers a power of 1000W 100W 3000W 500W 1000W 100W 3000W 500W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is unity 0.707 lagging R = S.X zero 0.5 lagging unity 0.707 lagging R = S.X zero 0.5 lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field of a dc shunt motor gets opened while the motor is running, then the motor will attain dangerously high speed armature will oscillate about original speed as the mean speed motor will become slow. armature current will drop motor will attain dangerously high speed armature will oscillate about original speed as the mean speed motor will become slow. armature current will drop ANSWER DOWNLOAD EXAMIANS APP
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