Operational Amplifiers MCQs
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 46easy
What electromotive force would cause 20 A of current to flow through a 500 omega.gif resistor?
Question 47easy
Power supplies are regulated to prevent the output voltage from changing due to changes in the
Question 48easy
Ohm's law is a relationship between
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Question 49easy
The voltage across a ___ resistor is 12 V and the current through it is 500 mu.gifA.
Question 50easy
If current through a resistance is halved
Question 51easy
In an open-loop op-amp circuit, whenever the inverting input (–) is negative relative to the noninverting input (+), the output will:
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Question 52easy
With a differential gain of 50,000 and a common-mode gain of 2, what is the common-mode rejection ratio?
Question 53easy
If the voltage across a resistor ___, the current flowing through it will increase.
Question 54easy
The voltage across a 2.2 komega.gif resistor is ___ if 3 mA of current is flowing through it.