Electrical Machines The teeth in the armature of a DC machines are sometimes skewed. This is done to reduce hysteresis loss. eddy electric current loss. copper loss. vibrations. hysteresis loss. eddy electric current loss. copper loss. vibrations. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 2000W 1450W 1920W 1820W 2000W 1450W 1920W 1820W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5Ω and back back emf 200 V is 44 A. 440 A. 40 A. 400 A. 44 A. 440 A. 40 A. 400 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. remains unaffected decreases any of the above increases remains unaffected decreases any of the above increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power flow of a dc motor, with respect to a DC generator is modified. increased. none of these. reversed. modified. increased. none of these. reversed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all of these. all bright lamp method. one dark two bright. all dark lamp method. all of these. all bright lamp method. one dark two bright. all dark lamp method. ANSWER DOWNLOAD EXAMIANS APP
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