Engineering Materials in EE A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is / >(A), (B), and (C) are all correct. alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. alternating. rotating. pulsating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have high resistivity. high retentivity. large B-H loop area. low hysteresis coefficient. high resistivity. high retentivity. large B-H loop area. low hysteresis coefficient. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Susceptibility is negative for non magnetic substances. diamagnetic substances. ferromagnetic substances. none of above. non magnetic substances. diamagnetic substances. ferromagnetic substances. none of above. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Cryogenics is a branch of science dealing with which of the following? Low temperature. High temperature. Friction and wear. Crystal growth. Low temperature. High temperature. Friction and wear. Crystal growth. 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 magneto-calorisation. magnetostriction. magnetic hysteresis. magnetic expansion. magneto-calorisation. magnetostriction. magnetic hysteresis. magnetic expansion. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Two different isotopes of an element have different numbers of protons. numbers of electrons. atomic number. numbers of neutrons. numbers of protons. numbers of electrons. atomic number. numbers of neutrons. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS