Engineering Materials in EE Which statement is not true of ferromagnetic materials. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. They have fixed value of μr. They have large magnetic susceptibility. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. They have fixed value of μr. They have large magnetic susceptibility. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A material with unequal anti-parallel atomic magnetic moments is non-magnetic. an anti-ferromagnet. ferrimagnet. a ferrite. non-magnetic. an anti-ferromagnet. ferrimagnet. a ferrite. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The magnetisation and applied field in ferromagnetic materials are related linearly. parabolically. non linearly. sinusoidally. linearly. parabolically. non linearly. sinusoidally. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The intensity of magnetization, M, of a ferro magnetic solid increases with increasing temperature. decreases with increasing temperature. depends on method of heating. is independent of temperature. increases with increasing temperature. decreases with increasing temperature. depends on method of heating. is independent of temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have low hysteresis coefficient. high retentivity. high resistivity. large B-H loop area. low hysteresis coefficient. high retentivity. high resistivity. large B-H loop area. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferrite core has low eddy current loss than an iron core because ferrites have hig hysteresis. ferrites have low permeability. ferrites are magnetic. / >ferrites have high resistance. ferrites have hig hysteresis. ferrites have low permeability. ferrites are magnetic. / >ferrites have high resistance. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS