Electronic Devices - BJT Amplifiers

Exercise :: BJT Amplifiers - Filling the Blanks

1. 

In a fixed-bias network, the input signal Vi is applied to the ________ of the transistor while the output Vo is off the ________.

A. base, collector
B. base, emitter
C. emitter, collector
D. None of the above

Answer: Option A

Explanation:

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2. 

In an emitter-follower, the voltage gain is ________.

A. slightly less than 1
B. slightly more than 1
C. a very large value
D. None of the above

Answer: Option A

Explanation:

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3. 

In an unbypassed emitter-bias configuration ________ replaces re in the hybrid equivalent circuit.

A. hie
B. hfe
C. hre
D. hoe

Answer: Option A

Explanation:

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4. 

The feedback pair uses a(n) ________ transistor driving a(n) ________ transistor, the two devices acting effectively much like one pnp transistor.

A. pnp, npn
B. pnp, pnp
C. npn, npn
D. None of the above

Answer: Option A

Explanation:

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5. 

In a hybrid equivalent circuit, ________ is determined to make it easier to find the other parameters.

A. Zi
B. Zo
C. Ai
D. Av

Answer: Option D

Explanation:

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