Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is unity zero leading lagging unity zero leading lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ventilating ducts in most of DC machine are longitudinal. radial. none of these. radial as well as longitudinal. longitudinal. radial. none of these. radial as well as longitudinal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 51.5Hz 2.5Hz 1.5Hz 48.5Hz 51.5Hz 2.5Hz 1.5Hz 48.5Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Speed regulation. Effiency. Starting torque. Running Torque. Speed regulation. Effiency. Starting torque. Running Torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Ke is eddy current constant, Kf is form factor, f is supply frequency, Bm maximum flux density in core of transformer, the expression of eddy current loss in transformer, is given by Kef2KfBm2. Kef2Kf2Bm. KefKf2Bm2. Kef2Kf2Bm2. Kef2KfBm2. Kef2Kf2Bm. KefKf2Bm2. Kef2Kf2Bm2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f3. f. f2. f1.5. f3. f. f2. f1.5. ANSWER DOWNLOAD EXAMIANS APP
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