Practice Input Modes - 2.1 | Operational Amplifier and Its Applications | Basic Electronics Engineering
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is differential mode in Op-Amps?

πŸ’‘ 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?

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

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the characteristic of the differential mode?

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

πŸ’‘ 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

πŸ’‘ Hint: Reflect on what the CMRR signifies in operational amplifiers.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

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.

πŸ’‘ Hint: Combine your knowledge of input interactions and the formula for CMRR.

Question 2

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

πŸ’‘ Hint: Consider the implications of common noise in your design.

Challenge and get performance evaluation