Electrical Machines Speed of DC motor can be controlled by varying applied voltage. resistance of armature culture. all of these. its flux oer pole. applied voltage. resistance of armature culture. all of these. its flux oer pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 16.67%. 14.28%. 18.25%. 15.30%. 16.67%. 14.28%. 18.25%. 15.30%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase transformer the magnitude of leakage reactance is twice that of resistance of both primary and secondary. With secondary short circuited, the input power factor is 1/3 2/√5 1/√5 1/√2 1/3 2/√5 1/√5 1/√2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce volume of iron. volume of copper. iron loss. reluctance of core. volume of iron. volume of copper. iron loss. reluctance of core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the speed of a dc motor increases with load torque, then it is a comulatively compounded motor permanent magnet motor differentially compounded motor series motor comulatively compounded motor permanent magnet motor differentially compounded motor series motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In auto transformer if the turn ratio is K, what is the power transferred inductively? K × input power None of these (1-K) × input power both A and B K × input power None of these (1-K) × input power both A and B ANSWER DOWNLOAD EXAMIANS APP
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