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
Engineering Materials in EE Susceptibility is negative for diamagnetic substances. ferromagnetic substances. none of above. non magnetic substances. diamagnetic substances. ferromagnetic substances. none of above. non magnetic substances. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE When a ferromagnetic substance is magnetized small changes in dimensions occur. Such a phenomenon is known as magneto-calorisation. magnetostriction. magnetic expansion. magnetic hysteresis. magneto-calorisation. magnetostriction. magnetic expansion. magnetic hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permanent magnets are made from which of following materials ? Ferromagnetic. Soft iron. Paramagnetic. Diamagnetic. Ferromagnetic. Soft iron. Paramagnetic. Diamagnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? Copper Potassium niobate Lead zirconate titanate None of these Copper Potassium niobate Lead zirconate titanate None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A degaussing is the process of remagnetising metallic parts. removing gases from materials. removal of magnetic impurities. demagnetising metallic parts. remagnetising metallic parts. removing gases from materials. removal of magnetic impurities. demagnetising metallic parts. ANSWER DOWNLOAD EXAMIANS APP
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