Engineering Materials in EE Materials which lack permanent magnetic dipoles are called ferro-magnectic. None of these dia-magnetic. semi-magnetic. ferro-magnectic. None of these dia-magnetic. semi-magnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE What are insulating materials that can tolerate maximum temperature? Glass. Porcelain. Mica. All of these. Glass. Porcelain. Mica. All of these. 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 Why diamond is very hard ? None of these Because of large cohesive energy Because of high melting point Because of covalent solid None of these Because of large cohesive energy Because of high melting point Because of covalent solid ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In electrical machines the material preferred for pole shoes of electromagnets is aluminium. lead. pure iron. copper. aluminium. lead. pure iron. copper. 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
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