IndiaBIX

Electronic Devices - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
71.
Open-loop voltage gain of an op-amp can range up to ________.
10,000
50,000
100,000
200,000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
72.
At what input voltage level does the output voltage level become numerically equal to the value of the common-mode gain of the amplifier?
Vi1 = –Vi2 = 0.25 V
Vi1 = –Vi2 = 0.50 V
Vi1 = –Vi2 = 0.75 V
Vi1 = –Vi2 = 1.00 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
73.

Refer to the given figure. The unity-gain bandwidth of this op-amp is 10.4 kHz. What is the bandwidth of the circuit?

10.4 kHz
15.5 kHz
3 MHz
16.7 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
74.
Which of the following is (are) the result of gain reduction by a feedback?
The amplifier voltage gain is a more stable and precise value.
The input impedance of the circuit is increased over that of the op-amp alone.
The output impedance is reduced over that of the op-amp alone.
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers