Engineering Materials in EE In electrical machines the material preferred for pole shoes of electromagnets is aluminium. copper. lead. pure iron. aluminium. copper. lead. pure iron. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE How many classes of insulating materials are there? 5. 8. 7. 6. 5. 8. 7. 6. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which statement is not true of ferromagnetic materials. They lose their nonlinearly property above the Curie temperature. They have large magnetic susceptibility. They have fixed value of μr. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. They have large magnetic susceptibility. They have fixed value of μr. Energy loss is proportional to the area of hysteresis loop. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Cryogenics is a branch of science dealing with which of the following? Friction and wear. High temperature. Crystal growth. Low temperature. Friction and wear. High temperature. Crystal growth. Low temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Permanent magnets are used in motors. all of above. loud speakers. generators. motors. all of above. loud speakers. generators. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Temporary magnets are used in which of the following ? Generators. Hoist. Motors. All of these. Generators. Hoist. Motors. All of these. ANSWER DOWNLOAD EXAMIANS APP
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