Practice Adder–Subtractor - 7.4 | 7. Arithmetic Circuits - Part A | Digital Electronics - Vol 1
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the two's complement of 1010?

💡 Hint: Invert the bits and add one.

Question 2

Easy

True or False: The MSB determines if a binary number is positive or negative.

💡 Hint: Consider how negative numbers are represented in binary.

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 do we do if the MSB of the result in binary addition is 1?

  • The result is correct
  • The result is negative
  • Disregard it

💡 Hint: Think about the representation of negative numbers in binary.

Question 2

True or False: Full adders can be used for both addition and subtraction operations.

  • True
  • False

💡 Hint: Remember how subtraction is transformed into an addition operation.

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Challenge Problems

Push your limits with challenges.

Question 1

Given two binary numbers 1100 and 0101, use the adder-subtractor circuit to show how subtraction is achieved. Provide the step-by-step binary conversion.

💡 Hint: Start with the two's complement process for the subtrahend.

Question 2

Design a full adder circuit using basic components and illustrate how it can also function as an adder-subtractor. Explain this duality.

💡 Hint: Think about the control signals that change the operation mode.

Challenge and get performance evaluation