Canadian Advanced pool, section 2-03

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Subelement 2

Advanced Components and Circuits

Section 2-03

transistors - NPN/PNP

2-03-01

What is the alpha of a bipolar transistor?

A.
The change of collector current with respect to base current
Correct Answer
B.
The change of collector current with respect to emitter current
C.
The change of base current with respect to collector current
D.
The change of collector current with respect to gate current

2-03-01

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2-03-02

What is the beta of a bipolar transistor?

A.
The change of base current with respect to emitter current
B.
The change of collector current with respect to emitter current
C.
The change of base current with respect to gate current
Correct Answer
D.
The change of collector current with respect to base current

2-03-02

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2-03-03

Which component conducts electricity from a negative emitter to a positive collector when its base voltage is made positive?

A.
A varactor
B.
A triode vacuum tube
Correct Answer
C.
An NPN transistor
D.
A PNP transistor

2-03-03

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2-03-04

What is the alpha of a bipolar transistor in common base configuration?

A.
Forward voltage gain
B.
Reverse current gain
C.
Reverse voltage gain
Correct Answer
D.
Forward current gain

2-03-04

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2-03-05

In a bipolar transistor, the change of collector current with respect to base current is called:

A.
gamma
Correct Answer
B.
beta
C.
delta
D.
alpha

2-03-05

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2-03-06

The alpha of a bipolar transistor is specified for what configuration?

A.
Common collector
Correct Answer
B.
Common base
C.
Common gate
D.
Common emitter

2-03-06

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2-03-07

The beta of a bipolar transistor is specified for what configurations?

A.
Common emitter or common gate
B.
Common base or common collector
Correct Answer
C.
Common emitter or common collector
D.
Common base or common emitter

2-03-07

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2-03-08

Which component conducts electricity from a positive emitter to a negative collector when its base is made negative?

A.
A triode vacuum tube
Correct Answer
B.
A PNP transistor
C.
A varactor
D.
An NPN transistor

2-03-08

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2-03-09

Alpha of a bipolar transistor is equal to :

A.
beta X (1 + beta)
Correct Answer
B.
beta / (1 + beta)
C.
beta X (1 - beta)
D.
beta / (1 - beta)

2-03-09

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2-03-10

The current gain of a bipolar transistor in common emitter or common collector compared to common base onfiguration is:

Correct Answer
A.
large to very large
B.
very small
C.
usually about double
D.
usually about half

2-03-10

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2-03-11

Beta of a bipolar transistor is equal to:

Correct Answer
A.
alpha / (1 - alpha)
B.
alpha / (1 + alpha)
C.
alpha X (1 - alpha)
D.
alpha X (1 + alpha)

2-03-11

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