Spontaneous magnetisation is characteristic of ferromagnetic materials. False True TRUE ANSWER : ? YOUR ANSWER : ?
In a metal, the valence electrons Are not shared Either B or C Are shared only between neighbouring atoms Are shared by all atoms TRUE ANSWER : ? YOUR ANSWER : ?
The merger of hole and free electron is called Covalent bonding Recombination Thermal energy Free electrons TRUE ANSWER : ? YOUR ANSWER : ?
Schrodinger wave equation is a Differential equation Partial differential equation Linear equation None of these TRUE ANSWER : ? YOUR ANSWER : ?
The materials which become polarized on the application of mechanical stress are called piezoelectric. True False TRUE ANSWER : ? YOUR ANSWER : ?
As the viscosity of a liquid increases, the relaxation time Decreases Remains constant Increases First decreases then increases TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances. 1 and 3 only 2 and 3 only 1 and 2 only 1, 2 and 3 TRUE ANSWER : ? YOUR ANSWER : ?
Which inductor is used at high frequencies? Iron alloy cored Cast iron cored Sheet steel cored Ceramic cored TRUE ANSWER : ? YOUR ANSWER : ?