MATERIALS AND COMPONENTS QUIZ

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 ANSWER : ?
YOUR ANSWER : ?

Many compounds also exhibit semiconducting properties.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

In solid insulator materials having only one kind of atom, the types of polarization which exist are

Electronic and ionic

Electronic, ionic and permanent

Electronic only

TRUE ANSWER : ?
YOUR ANSWER : ?

A characteristic property of crystal is its periodicity of structure.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

The phenomenon of dielectric hysteresis occurs with

AC

Both AC and DC

DC

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Nickel is a non-magnetic material.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

An atom of a rare gas is placed is an electric field E. Then

The nucleus will be shifted in a direction opposite to that of E.

The nucleus will be shifted in the direction of E by an amount which is proportional to E.

The nucleus will be shifted in the direction of E by an amount which is independent of E.

The nucleus will not be shifted.

TRUE ANSWER : ?
YOUR ANSWER : ?

The merger of hole and free electron is called

Recombination

Covalent bonding

Free electrons

Thermal energy

TRUE ANSWER : ?
YOUR ANSWER : ?

When a material is in superconducting state and a magnetic field is applied

The superconducting property may be affected and resistivity may increase from zero to a low value

The superconducting property may be destroyed

The superconducting property is not affected

The material may become an insulator

TRUE ANSWER : ?
YOUR ANSWER : ?

Ferrimagnetic materials have anti parallel orientation of equal moments of permanent dipoles.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?