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Worksheets

Introduction to Electronics

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Valency of carbon

a)

2

b)

3

c)

4

d)

5

2.

Atomic number of silicon

a)

32

b)

14

c)

12

d)

24

3.

Atomic number of Germanium

a)

32

b)

14

c)

12

d)

24

4.

Tick all the Pentavalent elements

a)

Phosphorus

b)

Arsenic

c)

Aluminium

d)

Boron

e)

Germanium

5.

Tick all the Trivalent elements

a)

Phosphorus

b)

Arsenic

c)

Aluminium

d)

Boron

e)

Germanium

6.

What is Intrinsic Semiconductor?

a)

Pure Semiconductor

b)

Impure Semiconductor

c)

Charged Semiconductor

d)

None of these

7.

What is Extrinsic Semiconductor?

a)

Pure Semiconductor

b)

Impure Semiconductor

c)

Charged Semiconductor

d)

None of these

8.

Adding Impurity to a semiconductor is known as

a)

Morphing

b)

Transforming

c)

Doping

d)

Etching

9.

If you add "pentavalent" impurity to intrinsic semiconductor, it becomes

a)

p type semiconductor

b)

n type semiconductor

c)

tetravalent semiconductor

d)

trivalent semiconductor

10.

If you add "trivalent" impurity to intrinsic semiconductor, it becomes

a)

p type semiconductor

b)

n type semiconductor

c)

tetravalent semiconductor

d)

trivalent semiconductor