Canadian Advanced pool, section 2-07

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Subelement 2

Advanced Components and Circuits

Section 2-07

amplifier circuits - discrete and IC

2-07-01

What determines the input impedance of a FET common-source amplifier?

A.
The input impedance is essentially determined by the resistance between the source and substrate
B.
The input impedance is essentially determined by the resistance between the source and the drain
Correct Answer
C.
The input impedance is essentially determined by the gate biasing network
D.
The input impedance is essentially determined by the resistance between the drain and substrate

2-07-01

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2-07-02

What determines the output impedance of a FET common-source amplifier?

A.
The output impedance is essentially determined by the drain supply voltage
Correct Answer
B.
The output impedance is essentially determined by the drain resistor
C.
The output impedance is essentially determined by the gate supply voltage
D.
The output impedance is essentially determined by the input impedance of the FET

2-07-02

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2-07-03

What are the advantages of a Darlington pair audio amplifier?

Correct Answer
A.
High gain, high input impedance and low output impedance
B.
Mutual gain, high stability and low mutual inductance
C.
Mutual gain, low input impedance and low output impedance
D.
Low output impedance, high mutual impedance and low output current

2-07-03

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2-07-04

In the common base amplifier, when the input and output signals are compared:

A.
the output signal lags the input signal by 90 degrees
Correct Answer
B.
the signals are in phase
C.
the output signals leads the input signal by 90 degrees
D.
the signals are 180 degrees out of phase

2-07-04

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2-07-05

In the common base amplifier, the input impedance, when compared to the output impedance is:

A.
only slightly higher
B.
only slightly lower
Correct Answer
C.
very low
D.
very high

2-07-05

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2-07-06

In the common emitter amplifier, when the input and output signals are compared:

A.
the output signal leads the input signal by 90 degrees
B.
the output signal lags the input signal by 90 degrees
Correct Answer
C.
the signals are 180 degrees out of phase
D.
the signals are in phase

2-07-06

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2-07-07

In the common collector amplifier, when the input and output signals are compared:

A.
the output signal leads the input signal by 90 degrees
B.
the output signal lags the input signal by 90 degrees
Correct Answer
C.
the signals are in phase
D.
the signals are 180 degrees out of phase

2-07-07

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2-07-08

The FET amplifier source follower circuit is another name for:

A.
common source circuit
Correct Answer
B.
common drain circuit
C.
common mode circuit
D.
common gate circuit

2-07-08

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2-07-09

The FET amplifier common source circuit is similar to which of the following bipolar transistor amplifier circuits?

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

2-07-09

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2-07-10

The FET amplifier common drain circuit is similar to which of the following bipolar transistor amplifier circuits?

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

2-07-10

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2-07-11

The FET amplifier common gate circuit is similar to which of the following bipolar transistor amplifier circuits?

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

2-07-11

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