Question 1

Data sheet entries that allow a designer to work out the case temperature for different heat sinks are called ________.

Accepted Answer

A)   thermal resistances
B)   thermal shocks
C)   reverse breakdown resistances
D)   negative resistancesE) B) and C)
F) A) and D)

Question 2

What is the device that increases a transistor's power rating by reducing the internal heat faster?

Accepted Answer

A)   heater wire
B)   chassis
C)   grommet
D)   heat sinkE) None of the above
F) A) and B)

Question 3

A bipolar junction transistor has two doped regions.

Accepted Answer

A) True 
 B)False

Question 4

An unbiased transistor is like two back-to-back diodes.

Accepted Answer

A) True 
 B)False

Question 5

A transistor has a power dissipation that equals ________.

Accepted Answer

A)   VCE x RC
B)   VCE x PD
C)   VCE x IC
D)   VCE x IBE) A) and D)
F) A) and C)

Question 6

The data sheet entry that lists how much the power rating of a device has to be reduced is the

Accepted Answer

A)   maximum power factor.
B)   maximum power dissipation.
C)   derating factor.
D)   breakdown factor.E) A) and D)
F) All of the above

Question 7

In most applications,a small-signal transistor is not fan-cooled

Accepted Answer

A)   but it does have a heat sink.
B)   and it does not have a heat sink.
C)   but it can be used as a power transistor.
D)   and case temperatures are usually above 30°C.E) B) and C)
F) None of the above

Question 8

What type transistor connection is shown in Figure 6-7 (a) ?

Accepted Answer

A)   common emitter
B)   common collector
C)   common base
D)   emitter followerE) None of the above
F) A) and B)

Question 9

Generally,power transistors can dissipate

Accepted Answer

A)   less than 1 W.
B)   more than 1 W.
C)   more than 100 W.
D)   less than 1 mW.E) A) and B)
F) A) and C)

Question 10

The emitter current in a bipolar junction transistor is equal to the sum of the collector and base currents.

Accepted Answer

A) True 
 B)False

Exam 6: BJT Fumdamentals

Data sheet entries that allow a designer to work out the case temperature for different heat sinks are called ________.

Correct Answer
verified

An unbiased transistor is like two back-to-back diodes.

Correct Answer
verified

Generally,power transistors can dissipate

Correct Answer
verified

What type transistor connection is shown in Figure 6-7 (a) ?

Correct Answer
verified

The data sheet entry that lists how much the power rating of a device has to be reduced is the

Correct Answer
verified

In most applications,a small-signal transistor is not fan-cooled

Correct Answer
verified

A transistor has a power dissipation that equals ________.

Correct Answer
verified

A bipolar junction transistor has two doped regions.

Correct Answer
verified

The emitter current in a bipolar junction transistor is equal to the sum of the collector and base currents.

Correct Answer
verified

What is the device that increases a transistor's power rating by reducing the internal heat faster?

Correct Answer
verified

Exam 6: BJT Fumdamentals

Data sheet entries that allow a designer to work out the case temperature for different heat sinks are called ________.

Correct AnswerverifiedShow Answer

An unbiased transistor is like two back-to-back diodes.

Correct AnswerverifiedShow Answer

Generally,power transistors can dissipate

Correct AnswerverifiedShow Answer

What type transistor connection is shown in Figure 6-7 (a) ?

Correct AnswerverifiedShow Answer

The data sheet entry that lists how much the power rating of a device has to be reduced is the

Correct AnswerverifiedShow Answer

In most applications,a small-signal transistor is not fan-cooled

Correct AnswerverifiedShow Answer

A transistor has a power dissipation that equals ________.

Correct AnswerverifiedShow Answer

A bipolar junction transistor has two doped regions.

Correct AnswerverifiedShow Answer

The emitter current in a bipolar junction transistor is equal to the sum of the collector and base currents.

Correct AnswerverifiedShow Answer

What is the device that increases a transistor's power rating by reducing the internal heat faster?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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