Electrical Machines A Shunt generator running at 1000 rpm has generated emf of 100 V. If the speed increases to 1200 rpm, the generated emf will be nearly 120 V 140 V 175 V 240 V 120 V 140 V 175 V 240 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load primary current in a transformer leads the applied voltage somewhat less than 90Ã& lags behind applied voltage by exactly 90Â&am lags behind applied voltage somewhat less than 90à leads the applied voltage by exactly 90Â& leads the applied voltage somewhat less than 90Ã& lags behind applied voltage by exactly 90Â&am lags behind applied voltage somewhat less than 90à leads the applied voltage by exactly 90Â& ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of bearing is provided in small induction motors to support the rotor shaft? Cast iron bearings. Ball bearings. Bush bearings. None of these Cast iron bearings. Ball bearings. Bush bearings. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 10% 41% 11% 21% 10% 41% 11% 21% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 50 Ω 10 Ω 0.1 Ω 100 Ω 50 Ω 10 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed depends on reactance load angle voltage both 1and 2 reactance load angle voltage both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
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