WorksheetsPrior Knowledge Test for Batch-7(A)
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
The Atomic Number of Silicon is.........?
a)
14
b)
15
c)
11
d)
18
2.
The Atomic Number of Germanium is.....................?
a)
35
b)
45
c)
31
d)
32
3.
Semiconductor contains howmany electrons at its valency shell?
a)
8
b)
7
c)
9
d)
4
4.
Identify the Insulator one?
a)
Aluminium
b)
Rubber
c)
Silver
d)
Metal
5.
Identify the Body colour of the resistor?
a)
Red
b)
Black
c)
Green
d)
Gold
6.
Insulator has forbidden gap of ........?
a)
11ev
b)
12ev
c)
13ev
d)
15ev
7.
Resistor is used for........?
a)
Support current
b)
Oppose current
c)
Increase current
d)
Support voltage
8.
Which electrons are take part in current conduction in semiconductor?
a)
Inner shell electrons
b)
Outer shell electrons
c)
Most innershell holes
d)
outer shell holes
9.
Electron carry which charge?
a)
+ve
b)
-ve
c)
neutral
d)
more +ve
10.
Missing of electron is known as ..........?
a)
Electron
b)
Hole
c)
Protron
d)
Neutron
100 %
