Electrical Machines Commutation in a DC machine may be explained as a process in which magnetic field is set up. how alternate flux affects the main field flux. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. in which magnetic field is set up. how alternate flux affects the main field flux. by virtue of which emf is induced in the armature conductors. by which electric current in a coil is reversed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be 230 V 6 V somewhat more than 230 V somewhat less than 230 V 230 V 6 V somewhat more than 230 V somewhat less than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in steel core. winding conductors and steel structures of transformer. transformer insulating oil. paper insulation in transformers. steel core. winding conductors and steel structures of transformer. transformer insulating oil. paper insulation in transformers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on Y-axis and armature current on X-axis. field current on X-axis and armature current on Y-axis. either of these. field current on X-axis and power factor on Y-axis. field current on Y-axis and armature current on X-axis. field current on X-axis and armature current on Y-axis. either of these. field current on X-axis and power factor on Y-axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to start the motor. improve the starting torque. improve the power factor. reduce the harmonics. start the motor. improve the starting torque. improve the power factor. reduce the harmonics. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Poles of DC machine are often laminated to reduce iron weight. dissipate more heat. reduce pulsation loss. reduce armature reaction. reduce iron weight. dissipate more heat. reduce pulsation loss. reduce armature reaction. ANSWER DOWNLOAD EXAMIANS APP
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