Exam
Name___________________________________
TRUE/FALSE.
Write 'T' if the statement is true and 'F' if the statement is false.
1)
BJT transistors have one pn junction.
1)
___F___
2)
Proper operation of a BJT requires that the base-collector junction should be forward-biased.
2)
___T___
MULTIPLE CHOICE.
Choose the one alternative that best completes the statement or answers
the question.
3)
A donor impurity has _________ valance electrons.
3)
___C___
A)
Three
B)
Two
C)
Five
D)
Four
4)
An acceptor impurity has _________ valance electrons.
4)
Four
Three
Two
Five
5)
How much forward diode voltage is there with the practical-diode approximation?
5)
0.7 V
1 V
More than 0.7 V
0 V
6)
When transistors are used in digital circuits they usually operate in the
6)
linear region.
active region.
saturation and cuto± regions.
breakdown region.
7)
Holes are the majority carriers in
7)
__A____
A)
a p-type semiconductor.
B)
a pn junction semiconductor.
C)
an n-type semiconductor.
D)
None of the above.
8)
In a bipolar junction transistor, collector current is controlled by
8)
collector resistance.
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- Fall '14
