Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles. False True TRUE ANSWER : ? YOUR ANSWER : ?
Debye temperature of metals is About 200 K About 600 K About 10 K About 2 K TRUE ANSWER : ? YOUR ANSWER : ?
In a metal, the valence electrons Either B or C Are not shared Are shared by all atoms Are shared only between neighbouring atoms TRUE ANSWER : ? YOUR ANSWER : ?
The most important set of specifications of transformer oil include viscosity and flash point dielectric strength and viscosity dielectric strength and flash point flash point and viscosity TRUE ANSWER : ? YOUR ANSWER : ?
The fact that domains exhibits spontaneous magnetisation is Curie-Weiss law First hypothesis is of Curie Boltzmann’s statistics Second hypothesis is of Weiss TRUE ANSWER : ? YOUR ANSWER : ?
The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as Matthiessen’s rule Curie rule Debye rule Onne’s rule TRUE ANSWER : ? YOUR ANSWER : ?
The materials which become polarized on the application of mechanical stress are called piezoelectric. False True TRUE ANSWER : ? YOUR ANSWER : ?