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 Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The dielectric losses do not depend on frequency. False True False True ANSWER DOWNLOAD EXAMIANS APP
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 In a metal, the valence electrons Either B or C Are shared only between neighbouring atoms Are not shared Are shared by all atoms Either B or C Are shared only between neighbouring atoms Are not shared Are shared by all atoms ANSWER DOWNLOAD EXAMIANS APP
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