MATERIALS AND COMPONENTS QUIZ

The number of protons in a silicon atom are

8

12

14

4

TRUE ANSWER : ?
YOUR ANSWER : ?

The resistance of a photoconductor

Decreases with increase in light intensity

Remains constant

May increase or decrease with increase in light intensity

Increases with increase in light intensity

TRUE ANSWER : ?
YOUR ANSWER : ?

A characteristic property of crystal is its periodicity of structure.

True

False

TRUE ANSWER : ?
YOUR ANSWER : ?

If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

As the atoms of rare gases become larger, electronic polarizability

Increases

May increase or decrease

Remains the same

Decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

Which inductor is used at high frequencies?

Cast iron cored

Ceramic cored

Iron alloy cored

Sheet steel cored

TRUE ANSWER : ?
YOUR ANSWER : ?

Wood is a diamagnetic material.

False

True

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

The nucleus will not be shifted.

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

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

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 but increase in intrinsic semiconductor

Increase in metals but decrease in intrinsic semiconductor

Increase in metals as well as in intrinsic semiconductor

Decrease in metals as well as in intrinsic semiconductor

TRUE ANSWER : ?
YOUR ANSWER : ?