Engineering Materials in EE The permanent magnets are made from which of following materials ? Soft iron. Ferromagnetic. Paramagnetic. Diamagnetic. Soft iron. Ferromagnetic. Paramagnetic. Diamagnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The Bohr model of the atom had some made-up rules without explanations. could not explain the line spectrum of atoms larger than hydrogen. explained the color lines in the hydrogen spectrum. All of these had some made-up rules without explanations. could not explain the line spectrum of atoms larger than hydrogen. explained the color lines in the hydrogen spectrum. All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE What is the name of the fluorescent material that gives red colour fluorescence? Zinc sulphide. Calcium silicate. Zinc silicate. Magnesium silicate. Zinc sulphide. Calcium silicate. Zinc silicate. Magnesium silicate. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The intensity of magnetization, M, of a ferro magnetic solid is independent of temperature. decreases with increasing temperature. increases with increasing temperature. depends on method of heating. is independent of temperature. decreases with increasing temperature. increases with increasing temperature. depends on method of heating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Materials which lack permanent magnetic dipoles are called ferro-magnectic. dia-magnetic. semi-magnetic. None of these ferro-magnectic. dia-magnetic. semi-magnetic. None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Materials having a high dielectric constant, which is non-linear, are known as ferroelectric materials. super die-electrics. elastomers. hard die-electrics. ferroelectric materials. super die-electrics. elastomers. hard die-electrics. ANSWER DOWNLOAD EXAMIANS APP
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