Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Differentical compound. Cummulative compound. Series shunt. have an equal number of electrons and protons. Differentical compound. Cummulative compound. Series shunt. have an equal number of electrons and protons. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as V V² f² f V V² f² f ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Damper winding is used to both 1 and 2. increase the load current. suppress the hunting. decrease the load current. both 1 and 2. increase the load current. suppress the hunting. decrease the load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an induction motor. synchronous motor. induction generator. synchronous generator. induction motor. synchronous motor. induction generator. synchronous generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The teeth in the armature of a DC machines are sometimes skewed. This is done to reduce eddy electric current loss. copper loss. hysteresis loss. vibrations. eddy electric current loss. copper loss. hysteresis loss. vibrations. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In circle diagram for induction motor, diameter of circle represents which of the following ? Line voltage. Rotor current. Slip. Running torque. Line voltage. Rotor current. Slip. Running torque. ANSWER DOWNLOAD EXAMIANS APP
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