Engineering Materials in EE Almost the entire mass of an atom is concentrated in the neutrons. nucleus. electrons. protons. neutrons. nucleus. electrons. protons. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have high resistivity. large B-H loop area. high retentivity. low hysteresis coefficient. high resistivity. large B-H loop area. high retentivity. low hysteresis coefficient. 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 magnetic hysteresis. magneto-calorisation. magnetic expansion. magnetostriction. magnetic hysteresis. magneto-calorisation. magnetic expansion. magnetostriction. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In ferromagnetic materials one of the constituent is iron. the atomic magnetic moments are antiparallel and unequal. the atomic magnetic moments are parallel. the constituent is only iron. one of the constituent is iron. the atomic magnetic moments are antiparallel and unequal. the atomic magnetic moments are parallel. the constituent is only iron. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? Lead zirconate titanate None of these Potassium niobate Copper Lead zirconate titanate None of these Potassium niobate Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Find the odd one out. Dielectric strength. Refractive index. Absorptivity. Emissivity. Dielectric strength. Refractive index. Absorptivity. Emissivity. ANSWER DOWNLOAD EXAMIANS APP
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