Electrical Machines Induction motors provided with open slots have higher efficiency. more breakdown torque. less breakdown torque. leading power factor. higher efficiency. more breakdown torque. less breakdown torque. leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of connection is made in between the inter-pole and the field winding? Series. None of the options. Parallel. Compound. Series. None of the options. Parallel. Compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the armature current of 5 Amp is flowing through the dc motor the torque produced is 47 Nm. Keeping the speed constant if the armature current is increased to 7 amp, calculate the new torque. Assume losses to be constant. 38.5 Nm. 65.8 Nm. 27.73 Nm . 74 Nm. 38.5 Nm. 65.8 Nm. 27.73 Nm . 74 Nm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of a DC motor back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current fall. both back emf as well as line current increase. back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current fall. both back emf as well as line current increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the cause of rapid brush wear may be imperfect contact. rough commutator surface. severe sparking. any of above. imperfect contact. rough commutator surface. severe sparking. any of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In normal dc machines operating at full-load conditions, the most powerful electromagnet is interpole winding armature winding field winding interpole and compensating windings together interpole winding armature winding field winding interpole and compensating windings together ANSWER DOWNLOAD EXAMIANS APP
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