Engineering Materials in EE Which of the following is the example for piezo-electric material ? Copper Potassium niobate None of these Lead zirconate titanate Copper Potassium niobate None of these Lead zirconate titanate ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A material with unequal anti-parallel atomic magnetic moments is a ferrite. ferrimagnet. non-magnetic. an anti-ferromagnet. a ferrite. ferrimagnet. non-magnetic. an anti-ferromagnet. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Materials which lack permanent magnetic dipoles are called dia-magnetic. None of these ferro-magnectic. semi-magnetic. dia-magnetic. None of these ferro-magnectic. semi-magnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE What are insulating materials that can tolerate maximum temperature? Mica. All of these. Porcelain. Glass. Mica. All of these. Porcelain. Glass. 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 magnetostriction. magnetic expansion. magneto-calorisation. magnetic hysteresis. magnetostriction. magnetic expansion. magneto-calorisation. magnetic hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the least desired property in magnetic materials for electrical engineering applications ? Large hysteresis loop. All of these High electrical resistivity. High magnetic permeability. Large hysteresis loop. All of these High electrical resistivity. High magnetic permeability. ANSWER DOWNLOAD EXAMIANS APP
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