Engineering Materials in EE The intensity of magnetization, M, of a ferro magnetic solid depends on method of heating. decreases with increasing temperature. increases with increasing temperature. is independent of temperature. depends on method of heating. decreases with increasing temperature. increases with increasing temperature. is independent of temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have high resistivity. large B-H loop area. low hysteresis coefficient. high retentivity. high resistivity. large B-H loop area. low hysteresis coefficient. high retentivity. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permeability of iron can be increased by increasing carbon percentage. purifying it. alloying with cobalt. reducing carbon percentage. increasing carbon percentage. purifying it. alloying with cobalt. reducing carbon percentage. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Why diamond is very hard ? Because of high melting point Because of covalent solid Because of large cohesive energy None of these Because of high melting point Because of covalent solid Because of large cohesive energy None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Maximum number of electrons in a sub-shell with l = 3 and n = 4 is 10. 8. 20. 14. 10. 8. 20. 14. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE It is difficult to magnetize steel because it has low permeability. low susceptibility. high permeability. high permittivity. low permeability. low susceptibility. high permeability. high permittivity. ANSWER DOWNLOAD EXAMIANS APP
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