WorksheetsAE Topic 2 & 3
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
A transistor has _____ terminals.
a)
1
b)
2
c)
3
d)
4
2.
This is a ______ .
a)
PNP transistor
b)
NPN transistor
c)
NPN amplifier
d)
PNP bipolar
3.
Which is NOT true about P-type semiconductor?
a)
It's doped with "holes".
b)
It has electrons removed.
c)
It has extra electrons.
d)
It has absence of electrons.
4.
Which terminal of a transistor has the highest doping?
a)
Base
b)
Emitter
c)
Collector
d)
Ground
5.
Transistor acts like _______ diode(s).
a)
1
b)
2
c)
3
d)
4
6.
A transistor acts like open circuit when it's in the ______ mode.
a)
saturation
b)
cut-off
c)
biased
d)
linear
7.
In which mode is emitter current almost equal to the collector current?
a)
Cut-off
b)
Saturation
c)
Biased
d)
Linear
8.
Which mode has both BE and BC junctions in forward biased?
a)
Saturation
b)
Cut-off
c)
Forward Active
d)
Reverse Active
9.
A NPN transistor in saturation mode has
a)
Ve < Vb < Vc
b)
Ve < Vb > Vc
c)
Ve > Vb < Vc
d)
Ve > Vb > Vc
10.
Calculate the collector current Ic if the transistor has a beta of 90 and an input/base current of 1mA.
a)
0.09A
b)
0.9A
c)
900 mA
d)
9mA
11.
When the base voltage is less than 0.6V, the transistor is in the _____ mode.
a)
saturated
b)
cut-off
c)
forward active
d)
reverse active
12.
A voltage follower is common ______ transistor amplifier configuration.
a)
emitter
b)
base
c)
collector
d)
ground
13.
Which transistor amplifier configuration has a 180 deg phase shift between input and output?
a)
Common Emitter
b)
Common Base
c)
Common Collector
d)
Fixed Biased
14.
Which configuration has HIGH input impedance and LOW output impedance?
a)
Common Emitter
b)
Common Collector
c)
Common Base
d)
Common Sense
15.
Which configuration is commonly used as a current amplifier?
a)
Common Emitter
b)
Common Base
c)
Common Collector
d)
Common Ground
100 %
