MATERIALS AND COMPONENTS QUIZ

Wood is a diamagnetic material.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of protons in a copper atom are

29

2

11

9

TRUE ANSWER : ?
YOUR ANSWER : ?

The merger of hole and free electron is called

Thermal energy

Recombination

Covalent bonding

Free electrons

TRUE ANSWER : ?
YOUR ANSWER : ?

Many compounds also exhibit semiconducting properties.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

The fact that domains exhibits spontaneous magnetisation is

Curie-Weiss law

Boltzmann’s statistics

First hypothesis is of Curie

Second hypothesis is of Weiss

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of protons in a silicon atom are

4

12

8

14

TRUE ANSWER : ?
YOUR ANSWER : ?

As the viscosity of a liquid increases, the relaxation time

Increases

Decreases

First decreases then increases

Remains constant

TRUE ANSWER : ?
YOUR ANSWER : ?

Which inductor is used at high frequencies?

Cast iron cored

Sheet steel cored

Ceramic cored

Iron alloy cored

TRUE ANSWER : ?
YOUR ANSWER : ?

For making a capacitor it is better to have a dielectric having

Permittivity same as that of air

High permittivity

Low permittivity

Permittivity which is neither high nor low

TRUE ANSWER : ?
YOUR ANSWER : ?

With increase in temperature, the electrical conductivity would

Increase in metals as well as in intrinsic semiconductor

Increase in metals but decrease in intrinsic semiconductor

Decrease in metals as well as in intrinsic semiconductor

Decrease in metals but increase in intrinsic semiconductor

TRUE ANSWER : ?
YOUR ANSWER : ?