Engineering Materials in EE Permanent magnets are used in all of above. generators. loud speakers. motors. all of above. generators. loud speakers. motors. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Temporary magnets are used in which of the following ? Generators. Hoist. All of these. Motors. Generators. Hoist. All of these. Motors. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Materials which lack permanent magnetic dipoles are called semi-magnetic. ferro-magnectic. None of these dia-magnetic. semi-magnetic. ferro-magnectic. None of these dia-magnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The Bohr model of the atom could not explain the line spectrum of atoms larger than hydrogen. All of these explained the color lines in the hydrogen spectrum. had some made-up rules without explanations. could not explain the line spectrum of atoms larger than hydrogen. All of these explained the color lines in the hydrogen spectrum. had some made-up rules without explanations. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The dielectric strength of ferroelectric materials depends to a large extent on intensity of electric field. frequency of applied voltage. area of hysteresis loop for the material. presence of magnetic materials in the vicinity. intensity of electric field. frequency of applied voltage. area of hysteresis loop for the material. presence of magnetic materials in the vicinity. 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. 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. ANSWER DOWNLOAD EXAMIANS APP
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