MATERIALS AND COMPONENTS QUIZ

The unit for mmf is

T

V

Wb

A

TRUE ANSWER : ?
YOUR ANSWER : ?

A characteristic property of crystal is its periodicity of structure.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

The fact that domains exhibits spontaneous magnetisation is

Boltzmann’s statistics

Curie-Weiss law

First hypothesis is of Curie

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

Debye rule

Curie rule

Matthiessen’s rule

Onne’s rule

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 : ?

In van der walls crystals, there exists a high degree of stability of the outer electron shell.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

With increase in temperature, the electrical conductivity would

Decrease in metals as well as in intrinsic semiconductor

Increase in metals as well as in intrinsic semiconductor

Decrease in metals but increase in intrinsic semiconductor

Increase in metals but decrease in intrinsic semiconductor

TRUE ANSWER : ?
YOUR ANSWER : ?

Which inductor is linear?

Sheet steel cored

Iron alloy cored

Cast iron cored

Air cored

TRUE ANSWER : ?
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For making a capacitor it is better to have a dielectric having

Low permittivity

Permittivity same as that of air

High permittivity

Permittivity which is neither high nor low

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of protons in a silicon atom are

8

14

4

12

TRUE ANSWER : ?
YOUR ANSWER : ?