Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to Ia2. 1/Ia. √Ia. Ia. Ia2. 1/Ia. √Ia. Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic field which initially induces emf in the armature in a self excited DC generator is because of permanent magnets. None of these residual magnetism. armature reaction. permanent magnets. None of these residual magnetism. armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of the current in the compensating winding is________ to the direction of current in the armature conductors? either of these same None of these exactly opposite either of these same None of these exactly opposite ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? pole chamfering compensating winding pole stacking All of these pole chamfering compensating winding pole stacking All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors have the advantage of less maintenance. all of below. less cost. simple in construction. less maintenance. all of below. less cost. simple in construction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is 250 A. 340 A. 570 A. 440 A. 250 A. 340 A. 570 A. 440 A. ANSWER DOWNLOAD EXAMIANS APP
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