Electrical Machines A transformer has hysteresis loss of 30 W, at 240 V, 60 Hz. The hysteresis loss at 200 V, 50 Hz will be 36 W. 25 W. 28 W. 30 W. 36 W. 25 W. 28 W. 30 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above questions, find the power delivered by each of the alternators to a load of impedance 6Ω(resistive) 6000 W, 7000 W. 1000 W, 5040 W. 3190 W, 5040 W. 100 W, 2000 W. 6000 W, 7000 W. 1000 W, 5040 W. 3190 W, 5040 W. 100 W, 2000 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two dc machines A and B, using the same conductor material, have armature circuit resistances of 0.4 Ω and 1.2 Ω respectively. Of the two machines, both are of the same size for the same current rating A is bigger than B for the same current rating B is bigger than A for the same current rating A is bigger than B for the same voltage rating both are of the same size for the same current rating A is bigger than B for the same current rating B is bigger than A for the same current rating A is bigger than B for the same voltage rating ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the shunt resistance component equivalent circuit obtained by no load test of an induction motor representative of ? windage and friction loss both 1 and 2 Copper loss core loss only windage and friction loss both 1 and 2 Copper loss core loss only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same? any of the above 0.5 0 1 any of the above 0.5 0 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A smaller air gap in a polyphase induction motor helps to reduce the magnetizing current. reduce the chance of crawling. increase the starting torque. reduce the chance of cogging. reduce the magnetizing current. reduce the chance of crawling. increase the starting torque. reduce the chance of cogging. ANSWER DOWNLOAD EXAMIANS APP
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