Electrical Machines For a DC machine having P no of pole pairs Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance for lap-winding ? PZL/ 4Sa PZL/4S PZL/4Sa² PZL/4SP² PZL/ 4Sa PZL/4S PZL/4Sa² PZL/4SP² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? continuity supply is maintained All of these Increase efficiency under light load conditions Increase in reliability continuity supply is maintained All of these Increase efficiency under light load conditions Increase in reliability ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC generator is run at full speed without any excitation. The open circuit voltage will be 220 V. zero. about 50 V. about 2 V. 220 V. zero. about 50 V. about 2 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed regulation of a DC motor is given as (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. NnL/NfL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ideal value of voltage regulation of a device is? 0 a finite negative value a positive finite value ∞ 0 a finite negative value a positive finite value ∞ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings is placed in which part of a D.C motor? None of these On armature. On yoke in the pole faces. On yoke in the inter pole gap. None of these On armature. On yoke in the pole faces. On yoke in the inter pole gap. ANSWER DOWNLOAD EXAMIANS APP
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