Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components At room temperature the number of conducting electrons in an intrinsic semiconductor Is almost equal to the number of valence electrons Is about half the number of valence electrons Is small as compared to the number of valence electrons Is a very small fraction of the number of valence electrons Is almost equal to the number of valence electrons Is about half the number of valence electrons Is small as compared to the number of valence electrons Is a very small fraction of the number of valence electrons ANSWER DOWNLOAD EXAMIANS APP
Materials and Components With increase in temperature, the electrical conductivity would Increase in metals as well as in intrinsic semiconductor Decrease in metals as well as in intrinsic semiconductor Decrease in metals but increase in intrinsic semiconductor Increase in metals but decrease in intrinsic semiconductor Increase in metals as well as in intrinsic semiconductor Decrease in metals as well as in intrinsic semiconductor Decrease in metals but increase in intrinsic semiconductor Increase in metals but decrease in intrinsic semiconductor ANSWER DOWNLOAD EXAMIANS APP
Materials and Components In van der walls crystals, there exists a high degree of stability of the outer electron shell. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess Low thermal conductivity and low melting pointL High thermal conductivity and high melting point Low thermal conductivity and high melting point High thermal conductivity and low melting point Low thermal conductivity and low melting pointL High thermal conductivity and high melting point Low thermal conductivity and high melting point High thermal conductivity and low melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The fact that domains exhibits spontaneous magnetisation is Boltzmann’s statistics Second hypothesis is of Weiss First hypothesis is of Curie Curie-Weiss law Boltzmann’s statistics Second hypothesis is of Weiss First hypothesis is of Curie Curie-Weiss law ANSWER DOWNLOAD EXAMIANS APP
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