Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 2 V 0 V 1 V 4 V 2 V 0 V 1 V 4 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip 0 .001 %. None of these 3 %. 3.33 %. 0 .001 %. None of these 3 %. 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators brushes are used for reduce eddy current loss convert ac armature current in to dc collecting of voltage collecting of current without any sparkings reduce eddy current loss convert ac armature current in to dc collecting of voltage collecting of current without any sparkings ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to DOL starting, a cage induction motor with star-delta starting shall have smoother acceleration. more starting time. reduced starting current. more starting torque. smoother acceleration. more starting time. reduced starting current. more starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has almost constant speed over their full load range? none of these. Compound (cummolative). Shunt. Series. none of these. Compound (cummolative). Shunt. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque depends on which of the following? flux (φ) armature current (I) both A and B speed flux (φ) armature current (I) both A and B speed ANSWER DOWNLOAD EXAMIANS APP
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