Electronics - Transistors and Applications

Exercise :: Transistors and Applications - Filling the Blanks

1. 

The gate-source junction of a JFET must be ________ for proper linear operation.

A. forward-biased
B. reverse-biased
C. either forward-biased or reverse-biased
D. neutral

Answer: Option B

Explanation:

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2. 

The ___ oscillator takes advantage of the piezoelectric effect.

A. crystal
B. Hartley
C. Colpitts
D. RC

Answer: Option A

Explanation:

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3. 

In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the product of Av × B equals_______.

A. reduced, one
B. reduced, less than one
C. increased, more than one
D. increased, much greater than one

Answer: Option A

Explanation:

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4. 

VCE approximately equals _______ when a transistor is in saturation.

A. VCC
B. VB
C. 0.2 V
D. 0.7 V

Answer: Option C

Explanation:

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5. 

The power gain (Ap) of any transistor amplifier circuit equals the ___________.

A. current gain squared
B. current gain times the voltage gain
C. voltage gain times the output resistance
D. current gain plus the voltage gain

Answer: Option B

Explanation:

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