Electrical Machines The back emf produced in a dc motor depends on none of these. P and Z. P. Z. none of these. P and Z. P. Z. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 120 KW, 50 Hz, star connected synchronous motor operating at 0.8 power factor leading has full load efficiency of 91%. The armature resistance is equal to 0.08Ω. The magnitude of armature current is nearly equal to 240 A. 173 A. 127 A. 190 A. 240 A. 173 A. 127 A. 190 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in steel core. paper insulation in transformers. transformer insulating oil. winding conductors and steel structures of transformer. steel core. paper insulation in transformers. transformer insulating oil. winding conductors and steel structures of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes 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. increase in speed but armature currnet remains the same. decrease in speed demanding less armature current. increase in speed demanding more armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the inner cage offers low resistance and low reactance. high resistance and high reactance. high resistance and low reactance. low resistance and high reactance. low resistance and low reactance. high resistance and high reactance. high resistance and low reactance. low resistance and high reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Copper loss. Stray loss. Eddy current loss. Hysteresis loss. Copper loss. Stray loss. Eddy current loss. Hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
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