Electrical Machines The speed regulation of a DC motor is given as NnL/NfL. (NnL − NfL)/NfL. NnL − NfL. (NfL − NnL)/NnL. NnL/NfL. (NnL − NfL)/NfL. NnL − NfL. (NfL − NnL)/NnL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on copper losses. stray losses. core losses. dielectric losses. copper losses. stray losses. core losses. dielectric losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T ∝ V T ∝ 1/V² T∝ V² T ∝ 1/V T ∝ V T ∝ 1/V² T∝ V² T ∝ 1/V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz 1-phase induction motor is running at 1470 rpm. Find the forward and backward slips? 0.04, 1.96 0.02, 0.98 0.04, 0.96 0.02, 1.98 0.04, 1.96 0.02, 0.98 0.04, 0.96 0.02, 1.98 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are slot wedges in a DC machine made of? Mild steel. Cast iron. Fibre. Silicon steel. Mild steel. Cast iron. Fibre. Silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The constant losses in transformer is/are both 2 and 3. eddy current loss. hysteresis loss. copper loss. both 2 and 3. eddy current loss. hysteresis loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS