Engineering Materials in EE A ferrite core has low eddy current loss than an iron core because ferrites are magnetic. ferrites have low permeability. / >ferrites have high resistance. ferrites have hig hysteresis. ferrites are magnetic. ferrites have low permeability. / >ferrites have high resistance. ferrites have hig hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The intensity of magnetization, M, of a ferro magnetic solid is independent of temperature. increases with increasing temperature. depends on method of heating. decreases with increasing temperature. is independent of temperature. increases with increasing temperature. depends on method of heating. decreases with increasing temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? None of these Copper Lead zirconate titanate Potassium niobate None of these Copper Lead zirconate titanate Potassium niobate ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Absolute permittivity of a dielectric medium is represented by None of these εr / εo. εoεr. εo / εr. None of these εr / εo. εoεr. εo / εr. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Susceptibility is negative for non magnetic substances. ferromagnetic substances. diamagnetic substances. none of above. non magnetic substances. ferromagnetic substances. diamagnetic substances. none of above. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permeability of iron can be increased by reducing carbon percentage. alloying with cobalt. purifying it. increasing carbon percentage. reducing carbon percentage. alloying with cobalt. purifying it. increasing carbon percentage. ANSWER DOWNLOAD EXAMIANS APP
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