Electrical Machines In a DC Shunt Motor if the load current increases then field flux decreases decreases. increases. remains constant. decreases decreases. increases. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor slots are slightly skewed in squirrel cage induction motor to provide ease of fabrication. decrease the amount of copper to be used. increase the strength of rotor bars. reduce the magnetic hum and locking tendency of rotor. provide ease of fabrication. decrease the amount of copper to be used. increase the strength of rotor bars. reduce the magnetic hum and locking tendency of rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 mwb. find the generated emf? 20V 200V 10V 100V 20V 200V 10V 100V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator has a critical field resistance of 300 Ω at a speed of 800 rpm if the speed is raised to 1000 rpm the critical field resistance is 145 Ω. 375 Ω. 225 Ω. 150 Ω. 145 Ω. 375 Ω. 225 Ω. 150 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the inner cage offers low resistance and high reactance. high resistance and low reactance. low resistance and low reactance. high resistance and high reactance. low resistance and high reactance. high resistance and low reactance. low resistance and low reactance. high resistance and high reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at lagging power factor. any of the above. leading power factor. unity power factor. lagging power factor. any of the above. leading power factor. unity power factor. ANSWER DOWNLOAD EXAMIANS APP
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