MATERIALS AND COMPONENTS QUIZ

As the atoms of rare gases become larger, electronic polarizability

Remains the same

May increase or decrease

Decreases

Increases

TRUE ANSWER : ?
YOUR ANSWER : ?

The merger of hole and free electron is called

Covalent bonding

Recombination

Free electrons

Thermal energy

TRUE ANSWER : ?
YOUR ANSWER : ?

The number of protons in a silicon atom are

14

4

12

8

TRUE ANSWER : ?
YOUR ANSWER : ?

Nickel is a non-magnetic material.

False

True

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YOUR ANSWER : ?

On the basis of the type of chemical bonds, solids may be classified into

Ionic crystal, valence crystals and metals

Ionic crystals

Ionic and valence crystals

Ionic crystals, valence crystals, metal and vander wall crystals

TRUE ANSWER : ?
YOUR ANSWER : ?

With increase in temperature, the electrical conductivity would

Decrease in metals as well as in intrinsic semiconductor

Increase in metals but decrease in intrinsic semiconductor

Decrease in metals but increase in intrinsic semiconductor

Increase in metals as well as in intrinsic semiconductor

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

Matthiessen’s rule

Curie rule

Onne’s rule

Debye rule

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In a metal, the valence electrons

Are shared only between neighbouring atoms

Either B or C

Are shared by all atoms

Are not shared

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Which inductor is used at high frequencies?

Iron alloy cored

Sheet steel cored

Cast iron cored

Ceramic cored

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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.

2 and 3 only

1, 2 and 3

1 and 3 only

1 and 2 only

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