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 1 100 50 10 1 100 50 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt machine generates 250 V on open circuit at 1000 RPM. Armature resistance is 0.5 Ω, field resistance 250 Ω. When running as a motor takes 4 A at 250 V. Calculate the efficiency when running as a motor taking 40 A at 250 V. Armature reaction weakens the field by 4%. 78.5% 82.5% 67.5% 72.5% 78.5% 82.5% 67.5% 72.5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field winding connection of DC shunt motor is changed It will run in same direction. motor will become slow. motor will not run. It will run in opposite direction. It will run in same direction. motor will become slow. motor will not run. It will run in opposite direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 1130 r.p.m. 1037.5 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. 1130 r.p.m. 1037.5 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor generally used for shears and punches is Shunt motor. Series motor. Differential compound motor. Cummulative compound motor. Shunt motor. Series motor. Differential compound motor. Cummulative compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space waveform of the air-gap flux distribution affects voltage but not the torque both the torque and voltage torque but not the voltage neither the voltage nor the torque voltage but not the torque both the torque and voltage torque but not the voltage neither the voltage nor the torque ANSWER DOWNLOAD EXAMIANS APP
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