Engineering Materials in EE In ferromagnetic materials 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. one of the constituent is iron. the atomic magnetic moments are antiparallel and unequal. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In electrical machines the material preferred for pole shoes of electromagnets is copper. lead. aluminium. pure iron. copper. lead. aluminium. pure iron. 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 A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Permittivity of free space is equal to 8.854 × 10 - 10 F / m. 8.854 × 10 - 13 F / m. 8.854 × 10 - 12 F / m. 8.854 × 10 - 11 F / m. 8.854 × 10 - 10 F / m. 8.854 × 10 - 13 F / m. 8.854 × 10 - 12 F / m. 8.854 × 10 - 11 F / m. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A material with unequal anti-parallel atomic magnetic moments is ferrimagnet. non-magnetic. an anti-ferromagnet. a ferrite. ferrimagnet. non-magnetic. an anti-ferromagnet. a ferrite. ANSWER DOWNLOAD EXAMIANS APP