Electrical Machines The speed regulation of a DC motor is given as NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output voltage of a DC generator is E = V – IaRa. E = V + Ra. E = V + IaRa. E = V + Ia. E = V – IaRa. E = V + Ra. E = V + IaRa. E = V + Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through none of above. slip rings. solid connection. commutator. none of above. slip rings. solid connection. commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be 6 V somewhat less than 230 V 230 V somewhat more than 230 V 6 V somewhat less than 230 V 230 V somewhat more than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in winding conductors and steel structures of transformer. paper insulation in transformers. transformer insulating oil. steel core. winding conductors and steel structures of transformer. paper insulation in transformers. transformer insulating oil. steel core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings are used in DC generators to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. mainly to reduce the eddy currents by providing local short circuit. None of these to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. mainly to reduce the eddy currents by providing local short circuit. None of these ANSWER DOWNLOAD EXAMIANS APP
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