Engineering Materials in EE Cryogenics is a branch of science dealing with which of the following? Friction and wear. High temperature. Low temperature. Crystal growth. Friction and wear. High temperature. Low temperature. Crystal growth. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which statement is not true of ferromagnetic materials. They have large magnetic susceptibility. They have fixed value of μr. They lose their nonlinearly property above the Curie temperature. Energy loss is proportional to the area of hysteresis loop. They have large magnetic susceptibility. They have fixed value of μr. They lose their nonlinearly property above the Curie temperature. Energy loss is proportional to the area of hysteresis loop. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE It is difficult to magnetize steel because it has high permeability. high permittivity. low permeability. low susceptibility. high permeability. high permittivity. low permeability. low susceptibility. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The core of a transformer for microwave frequency should be made of ferrites. silicon. silicon carbide. iron. ferrites. silicon. silicon carbide. iron. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Susceptibility is negative for non magnetic substances. diamagnetic substances. ferromagnetic substances. none of above. non magnetic substances. diamagnetic substances. ferromagnetic substances. none of above. ANSWER DOWNLOAD EXAMIANS APP
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