Operational Amplifiers MCQs

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Practice free Operational Amplifiers 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 81 questions — no login required.

Question 10easy
When a capacitor is used in place of a resistor in an op-amp network, its placement determines:
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Question 11easy
What is the difference between common-mode and differential-mode input signals?
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Question 12easy
The magnitude of closed-loop voltage gain (Acl) of an inverting amplifier equals:
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Question 13easy
An ideal amplifier should have:
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Question 14easy
A differential amplifier has a common-mode gain of 0.2 and a common-mode rejection ratio of 3250. What would the output voltage be if the single-ended input voltage was 7 mV rms?
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Question 15easy
In a PLL, to obtain lock, the signal frequency must:
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Question 16easy
A PLL can be used as a(n) ___________.
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Question 17easy
A circuit that uses an amplifier with passive filter elements is called a(n):
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Question 18easy
The input offset current equals the
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