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
Engineering Materials in EE In ferromagnetic materials 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. one of the constituent is iron. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE What is the name of the fluorescent material that gives red colour fluorescence? Zinc silicate. Zinc sulphide. Calcium silicate. Magnesium silicate. Zinc silicate. Zinc sulphide. Calcium silicate. Magnesium silicate. 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 In electrical machines the material preferred for pole shoes of electromagnets is copper. aluminium. pure iron. lead. copper. aluminium. pure iron. lead. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE ALNICO is an alloy of aluminium, nickel, iron and cobalt. aluminium, nickel. iron, aluminium. iron, cobalt, nickel. aluminium, nickel, iron and cobalt. aluminium, nickel. iron, aluminium. iron, cobalt, nickel. ANSWER DOWNLOAD EXAMIANS APP