Electrical Machines Iron losses in a DC machine are independent of variation in speed. load. voltage. speed and voltage. speed. load. voltage. speed and voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of dynamically induced emf is utilized in generator. transformer. choke. thermocouple. generator. transformer. choke. thermocouple. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.5. 0.1. 1.0. 0.05. 0.5. 0.1. 1.0. 0.05. 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 KefKf2Bm2. Kef2KfBm2. Kef2Kf2Bm2. Kef2Kf2Bm. KefKf2Bm2. Kef2KfBm2. Kef2Kf2Bm2. Kef2Kf2Bm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. directly. inversely. none of these. has no relation. directly. inversely. none of these. has no relation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called skewing. slip. cogging. crawling. skewing. slip. cogging. crawling. ANSWER DOWNLOAD EXAMIANS APP
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