Electrical Machines The armature of DC machine is made of silicon steel lamination to reduce eddy current loss only. increase the permeability. reduce both eddy current and hysteresis loss. reduce hysteresis loss only. reduce eddy current loss only. increase the permeability. reduce both eddy current and hysteresis loss. reduce hysteresis loss only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Total core loss is also called as -------------? Eddy current loss Copper loss Hysteresis loss Magnetic loss Eddy current loss Copper loss Hysteresis loss Magnetic loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of core are generally made of carbon. cast iron. silicon steel. stainless steel. carbon. cast iron. silicon steel. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is lagging power factor unity power factor leading power factor None of these lagging power factor unity power factor leading power factor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a standard frequency the machine operates at a particular speed known as any of the above. synchronous speed. slip speed. normal speed. any of the above. synchronous speed. slip speed. normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC generators has rising V-I characteristics? Shunt. Series. None of them. Compound. Shunt. Series. None of them. Compound. ANSWER DOWNLOAD EXAMIANS APP
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