Regenerative method of braking is based on that___________?

D.C. Motors 15/02/2021

A. back e.m.f. is less than the applied voltage
B. back e.m.f. is equal to the applied voltage
C. back e.m.f. of rotor is more than the applied voltage
D. none of the above

Related Mcqs:

    Kingdom Protoctista includes_______________?
    A. Prokaryotic organisms B. Unicellular organisms C. Fungi D. Eu-cariotiquic organisms...
    Which D.C. motor is preferred for elevators ?
    A. Shunt motor B. Series motor C. Differential compound motor D. Cumulative compound motor...
    The power mentioned on the name plate of an electric motor indicates____________?
    A. the power drawn in kW B. the power drawn in kVA C. the gross power D. the output power available at the shaft...
    Speed control by Ward Leonard method gives uniform speed variation_____________?
    A. in one direction B. in both directions C. below normal speed only D. above normal speed only...
    In Ward-Leonard control the lower limit of speed is imposed by________?
    A. residual magnetism of the generator B. core losses of motor C. mechanical losses of motor and generator together D. all of the above...

Leave a Reply

Your email address will not be published. Required fields are marked *