Operational Amplifier and Its Applications MCQs
Practice free Operational Amplifier and Its Applications multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 140 questions — no login required.
Question 100easy
The third harmonic of 300 Hz is
Question 101easy
The main function of transformer used In the output of a power amplifier is
Question 102easy
An RF amplifier has a frequency response curve with the following characteristics: Down 1 dB at 1.4 and 1.5 MHz Down 3 dB at 1.3 and 1.6 MHz Down 60 dB at 0.9 and 2.0 MHz What will be the standard bandwidth?
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Question 103easy
The selectivity factor is
Question 104easy
The 45?? 45? system refers to stereo for
Question 105easy
Which of the following would apply to the audio power output stage?
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Question 106easy
The gains of the three stages of a multistage amplifiers are 40, 50 and 80. The overall voltage gain in dl will be
Question 107easy
Two radio frequency amplifier are in cascade, one has a gain of 20 dB and and other 40 dB. The overall gain in dB is
Question 108easy
Two radio frequency amplifier are in cascade, one has a gain of 20 dB and and other 40 dB.The overall gain in voltage is