DC Motors The value of back emf in dc motor is maximum at Half full load No load Full load None of the listed here Half full load No load Full load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Opposes the applied voltage None of the listed here Aids the armature current Aids the applied voltage Opposes the applied voltage None of the listed here Aids the armature current Aids the applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors The starting resistance of a DC motor is generally Around 500 Ω Low 1000 Ω Infinitely large Around 500 Ω Low 1000 Ω Infinitely large ANSWER DOWNLOAD EXAMIANS APP
DC Motors In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be 1 Around 90% Anywhere between 75% and 90% Less than 50% 1 Around 90% Anywhere between 75% and 90% Less than 50% ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque will remain constant Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change Torque will remain constant Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change ANSWER DOWNLOAD EXAMIANS APP
DC Motors The resistance of shunt field winding as compared to series field winding is None of the listed here More The same Less None of the listed here More The same Less ANSWER DOWNLOAD EXAMIANS APP
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