Operational Amplifier Fundamentals – Exercise – 3

136. Another name for a unity gain amplifier is:

(a) difference amplifier
(b) comparator
(c) single ended
(d) voltage follower

Answer
Answer : (d)
Explanation
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137. What is the output waveform?

(a) sine wave
(b) square wave
(c) sawtooth wave
(d) triangle wave

Answer
Answer : (d)
Explanation
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138. A series dissipative regulator is an example of a:

(a) linear regulator
(b) switching regulator
(c) shunt regulator
(d) dc-to-dc converter

Answer
Answer : (a)
Explanation
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139. Common-mode signals have _____.

(a) the same amplitude
(b) the same phase
(c) the same frequency
(d) All of the above

Answer
Answer : (d)
Explanation
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140. 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
Answer : (c)
Explanation
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