Practice Input Modes - Operational Amplifier and Its Applications - Basic Electronics Engineering
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Input Modes

Practice - Input Modes

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is differential mode in Op-Amps?

💡 Hint: Think about what the Op-Amp is trying to do with the input signals.

Question 2 Easy

What is common mode in Op-Amps?

💡 Hint: What does the Op-Amp ideally output when both inputs are the same?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the characteristic of the differential mode?

A. Same voltage at both inputs
B. Amplifies voltage difference
C. Reduces signal quality

💡 Hint: Focus on the purpose of differential operation.

Question 2

Is it correct that CMRR measures how well an Op-Amp rejects common-mode signals?

True
False

💡 Hint: Reflect on what the CMRR signifies in operational amplifiers.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given an Op-Amp circuit with a common-mode input of 2V and a differential input resulting in a CMRR of 50, compute the expected output voltage when both modes interact.

💡 Hint: Combine your knowledge of input interactions and the formula for CMRR.

Challenge 2 Hard

Discuss the impact of low CMRR on precision measurement devices and propose a design modification to address this issue.

💡 Hint: Consider the implications of common noise in your design.

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Reference links

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