Electrical Machines A 230 volt dc motor has an armature winding resistance of 0.5 ohm. Calculate the emf induced by the motor if the full load armature current is 23 ampere. None of these. 218.5 volt. 220.4 volt. 120 volt. None of these. 218.5 volt. 220.4 volt. 120 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer action requires a constant magnetic flux. alternating magnetic lux. increasing magnetic flux. alternating electric flux. constant magnetic flux. alternating magnetic lux. increasing magnetic flux. alternating electric flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 1500 rpm 375 rpm 75 rpm 3000 rpm 1500 rpm 375 rpm 75 rpm 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is not suitable for frequent starting and stopping? Resistance split phase motor Capacitor run motor Capacitor split phase motor All of these Resistance split phase motor Capacitor run motor Capacitor split phase motor All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is lagging zero unity leading lagging zero unity leading ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC Series motor is connected across an AC supply it will run at lower speed. run at normal speed. not run. burn. run at lower speed. run at normal speed. not run. burn. ANSWER DOWNLOAD EXAMIANS APP
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