Electronics - Operational Amplifiers

Exercise :: Operational Amplifiers - General Questions

6. 

What is this circuit?

A. a low-pass filter
B. a high-pass filter
C. a bandpass filter
D. a band-stop filter

Answer: Option D

Explanation:

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7. 

A noninverting closed-loop op-amp circuit generally has a gain factor:

A. less than one
B. greater than one
C. of zero
D. equal to one

Answer: Option B

Explanation:

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8. 

In order for an output to swing above and below a zero reference, the op-amp circuit requires:

A. a resistive feedback network
B. zero offset
C. a wide bandwidth
D. a negative and positive supply

Answer: Option D

Explanation:

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9. 

Op-amps used as high- and low-pass filter circuits employ which configuration?

A. noninverting
B. comparator
C. open-loop
D. inverting

Answer: Option D

Explanation:

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10. 

mcq18_1012.gif

Decreasing the gain in the given circuit could be achieved by

A. reducing the amplitude of the input voltage
B. increasing the value of the feedback resistor
C. increasing the value of the input resistor
D. removing the feedback resistor

Answer: Option C

Explanation:

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