A. Of reducing number of slip rings on the rotor B. Armature is associated with large power as compared to the field circuits C. Of difficulty of providing high voltage insulation on rotor D. All of the above reasons
A. Stator supply is relieved of responsibility of producing magnetic field B. Mechanical load on the motor can be adjusted C. Synchronous motor runs at synchronous speed D. Synchronous motor has large air gap
A. Decrease both armature current and power factor B. Decrease armature current but increase power factor C. Increase armature current but decrease power factor D. Increase both its armature current and power factor
