Electrical Machines Iron losses in a DC machine are independent of variation in load. speed and voltage. speed. voltage. load. speed and voltage. speed. voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in sparking at the leading edge of the brush. no sparking. sparking the trailing edge of the brush. sparking at the middle of the brush. sparking at the leading edge of the brush. no sparking. sparking the trailing edge of the brush. sparking at the middle of the brush. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg ) 2000 Volt. 1500 Volt. 1600 Volt. 0 Volt. 2000 Volt. 1500 Volt. 1600 Volt. 0 Volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short-shunt cumulatively-compounded dc generator builds up a voltage of 220 V at no load at rated speed. If it is operated as a differentially compounded generator, other things remaining the same, it would build up 220 V somewhat less than 220 V 6 V more than 220 V 220 V somewhat less than 220 V 6 V more than 220 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotor resistance speed control is used in synchronous motor. squirrel cage induction motor. dc shunt motor. slip ring induction motor. synchronous motor. squirrel cage induction motor. dc shunt motor. slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 10 100 50 1 10 100 50 1 ANSWER DOWNLOAD EXAMIANS APP
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