Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 150 V. 220 V. 280 V. 240 V. 150 V. 220 V. 280 V. 240 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has wound rotor. any of the above. double cage rotor. short-circuited rotor. wound rotor. any of the above. double cage rotor. short-circuited rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage 200 V. 150 V. 300 V. 223.V. 200 V. 150 V. 300 V. 223.V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltage regulation of a DC generator at full load being zero implies that the generator is series connected. cumulatively compounded. shunt connected. deferentially compounded. series connected. cumulatively compounded. shunt connected. deferentially compounded. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? hysteresis loss shunt field copper loss eddy current loss armature copper loss hysteresis loss shunt field copper loss eddy current loss armature copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will increase. decrease. any of the above. remain constant. increase. decrease. any of the above. remain constant. ANSWER DOWNLOAD EXAMIANS APP
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