Electrical Machines The armature core of the rotor bars of dc motors are laminated to reduce mechanical losses. to provide better flux linkage. to reduce eddy current loss. to reduce hysteresis loss. to reduce mechanical losses. to provide better flux linkage. to reduce eddy current loss. to reduce hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? Both B and C. Electromagnets. None of the options. Permanent magnets. Both B and C. Electromagnets. None of the options. Permanent magnets. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at interpole region. None of these region under main pole. throughout the air gap. interpole region. None of these region under main pole. throughout the air gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor is, in general analogous to two winding transformer with secondary open circuited. None of these auto transformer. two winding transformer with secondary short circuited. two winding transformer with secondary open circuited. None of these auto transformer. two winding transformer with secondary short circuited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slot wedges in a dc machine is made up of mild steel. silicon steel. fibre. cast iron. mild steel. silicon steel. fibre. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the speed of a dc motor increases with load torque, then it is a comulatively compounded motor series motor permanent magnet motor differentially compounded motor comulatively compounded motor series motor permanent magnet motor differentially compounded motor ANSWER DOWNLOAD EXAMIANS APP
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