Materials and Components In solid insulator materials having only one kind of atom, the types of polarization which exist are Electronic and ionic Electronic only Electronic, ionic and permanent Electronic and ionic Electronic only Electronic, ionic and permanent ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess 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 High thermal conductivity and high melting point High thermal conductivity and low melting point Low thermal conductivity and low melting pointL ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a material is in superconducting state and a magnetic field is applied The material may become an insulator The superconducting property may be destroyed The superconducting property may be affected and resistivity may increase from zero to a low value The superconducting property is not affected The material may become an insulator The superconducting property may be destroyed The superconducting property may be affected and resistivity may increase from zero to a low value The superconducting property is not affected 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 Onne’s rule Debye rule Matthiessen’s rule Curie rule Onne’s rule Debye rule Matthiessen’s rule Curie rule 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
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