Amplifier Frequency Response - General Questions

Directions to Solve

Amplifier Frequency Response - General Questions

Refer to this figure. You are attempting to determine the lower cutoff frequency of this amplifier in the lab. As you change the input frequency and measure the output signal, you must remember to

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A.	set the oscilloscope to DC.
B.	maintain the input voltage constant.
C.	keep a constant temperature.
D.	watch for a change of .

Answer: Option B

Explanation:

No answer description available for this question

Refer to this figure. If R_L decreases in value, the output voltage will

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A.	increase
B.	decrease.
C.	remain the same.

Answer: Option B

Explanation:

No answer description available for this question.

Halving the power corresponds to a ________ dB ________.

A.	3, decrease
B.	10, decrease
C.	3, increase
D.	10, increase

Answer: Option A

Explanation:

No answer description available for this question

An RC network has values of R = 1.2 k omega (6) and C = 0.22 mu (4) F. Find f_c.

A.	3.79 kHz
B.	1.89 kHz
C.	603 Hz
D.	60 Hz

Answer: Option C

Explanation:

No answer description available for this question

What term means that the midrange voltage gain is assigned a value of 1 (or 0 dB)?

A.	critical
B.	Miller
C.	normalized
D.	corner

Answer: Option C

Explanation:

No answer description available for this question

In a multistage amplifier, the overall frequency response is determined by the

A.	frequency response of each stage depending on the relationships of the critical frequencies.
B.	frequency response of the first amplifier.
C.	frequency response of the last amplifier.
D.	lower critical frequency of the first amplifier and the upper critical frequency of the final amplifier.

Answer: Option A

Explanation:

No answer description available for this question

Refer to this figure. The capacitor C₁ affects

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A.	high-frequency response.
B.	low-frequency response.
C.	midrange response.
D.	nothing

Answer: Option B

Explanation:

No answer description available for this question.

Refer to this figure. The upper cutoff frequency of this amplifier is 22 kHz. The output at that frequency is 6.71 V p-p. What is the output voltage at 220 kHz?

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A.	9.49 V p-p
B.	6.71 V p-p
C.	0.671 V p-p
D.	0.0671 V p-p

Answer: Option C

Explanation:

No answer description available for this question

Amplifier Frequency Response - General Questions

Amplifier Frequency Response - General Questions

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