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Electronic Devices - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
46.
What is the voltage gain of the unity follower?
0
1
–1
Infinity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Negative feedback added to an op-amp ________ the bandwidth and ________ the gain.
increases, increases
increases, decreases
decreases, decreases
decreases, increases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
It takes an op-amp 22 s to change its output from –15 V to +15 V. Determine the slew rate.
1.36 V/s
0.68 V/s
–0.68 V/s
cannot determine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.

Refer to the given figure. The op-amp has a unity-gain bandwidth of 1.7 MHz. Find the bandwidth of the circuit.

155 MHz
155 kHz
155 Hz
15.5 Hz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
An RC network has R = 500 k and C = 10 pF. Find the value of fc.
31831 Hz
31.831 kHz
0.031831 MHz
all of the above
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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