Engineering Materials in EE The permeability of iron can be increased by purifying it. increasing carbon percentage. alloying with cobalt. reducing carbon percentage. purifying it. increasing carbon percentage. alloying with cobalt. reducing carbon percentage. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? Copper Lead zirconate titanate Potassium niobate None of these Copper Lead zirconate titanate Potassium niobate None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Positive magnetostriction exists when both are correct. dipoles are attract each other. dipoles are repel other. none of above. both are correct. dipoles are attract each other. dipoles are repel other. none of above. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Absolute permittivity of a dielectric medium is represented by εoεr. εr / εo. None of these εo / εr. εoεr. εr / εo. None of these εo / εr. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE What are insulating materials that can tolerate maximum temperature? All of these. Porcelain. Glass. Mica. All of these. Porcelain. Glass. Mica. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permanent magnets are made from which of following materials ? Soft iron. Paramagnetic. Diamagnetic. Ferromagnetic. Soft iron. Paramagnetic. Diamagnetic. Ferromagnetic. ANSWER DOWNLOAD EXAMIANS APP
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