Materials and Components If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The fact that domains exhibits spontaneous magnetisation is First hypothesis is of Curie Second hypothesis is of Weiss Curie-Weiss law Boltzmann’s statistics First hypothesis is of Curie Second hypothesis is of Weiss Curie-Weiss law Boltzmann’s statistics ANSWER DOWNLOAD EXAMIANS APP
Materials and Components At room temperature the number of conducting electrons in an intrinsic semiconductor Is about half 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 small as compared to the number of valence electrons Is about half 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 small as compared to the number of valence electrons ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as Curie rule Matthiessen’s rule Debye rule Onne’s rule Curie rule Matthiessen’s rule Debye rule Onne’s rule ANSWER DOWNLOAD EXAMIANS APP
Materials and Components For making a capacitor it is better to have a dielectric having High permittivity Permittivity same as that of air Low permittivity Permittivity which is neither high nor low High permittivity Permittivity same as that of air Low permittivity Permittivity which is neither high nor low ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess High thermal conductivity and high melting point High thermal conductivity and low melting point Low thermal conductivity and low melting pointL Low thermal conductivity and high melting point High thermal conductivity and high melting point High thermal conductivity and low melting point Low thermal conductivity and low melting pointL Low thermal conductivity and high melting point ANSWER DOWNLOAD EXAMIANS APP
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