Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to Ia. Ia2. 1/Ia. √Ia. Ia. Ia2. 1/Ia. √Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of core are generally made of stainless steel. carbon. cast iron. silicon steel. stainless steel. carbon. cast iron. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has negative speed regulation? Series motors. Both B and C. Shunt motors. Differential compound motors. Series motors. Both B and C. Shunt motors. Differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes increase in speed but armature currnet remains the same. decrease in speed demanding less armature current. increase in speed demanding more armature current. decrease in speed but armature current remains the same. increase in speed but armature currnet remains the same. decrease in speed demanding less armature current. increase in speed demanding more armature current. decrease in speed but armature current remains the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000. 10 volts. 30 volts. 20 volts. 40 volts. 10 volts. 30 volts. 20 volts. 40 volts. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using delta connection. star connection. zig - zag connection. V connection. delta connection. star connection. zig - zag connection. V connection. ANSWER DOWNLOAD EXAMIANS APP
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