Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Half-adders have a major limitation in that t...
Start Learning for Free
Half-adders have a major limitation in that they cannot __________
- a)Accept a carry bit from a present stage
- b)Accept a carry bit from a next stage
- c)Accept a carry bit from a previous stage
- d)Accept a carry bit from the following stages
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Half-adders have a major limitation in that they cannot __________a)Ac...
Limitation of Half-Adders
Half-adders are digital circuits that perform the addition of two binary digits. However, half-adders have a major limitation in that they cannot accept a carry bit from a previous stage. Let's understand this limitation in detail.
What is a Carry Bit?
A carry bit is generated when two binary digits are added together, and the result is greater than or equal to 2. In such a case, a carry bit is generated, which represents the carry-over to the next column of digits.
For example, when we add 1 + 1, the result is 10 in binary, where 1 is the sum and 0 is the carry bit.
Why Half-Adders Cannot Accept a Carry Bit from a Previous Stage?
Half-adders have two inputs, A and B, and two outputs, S (sum) and C (carry). The output S represents the sum of A and B, while the output C represents the carry-over to the next column of digits.
However, half-adders do not have any input to accept a carry bit from a previous stage. This means that if we want to add more than two binary digits, we need to use multiple half-adders connected in series, which is not an efficient way of performing addition.
For example, if we want to add three binary digits, A, B, and C, we need to use two half-adders. First, we add A and B using a half-adder to get the sum S1 and carry C1. Then, we add S1 and C using another half-adder to get the final sum S2 and carry C2.
However, if we had a full-adder instead of a half-adder, we could add three binary digits using only one full-adder, which is much more efficient.
Conclusion
In conclusion, half-adders have a major limitation in that they cannot accept a carry bit from a previous stage. This limitation makes it inefficient to perform addition of more than two binary digits using only half-adders. To overcome this limitation, we need to use full-adders or other advanced digital circuits.
Half-adders are digital circuits that perform the addition of two binary digits. However, half-adders have a major limitation in that they cannot accept a carry bit from a previous stage. Let's understand this limitation in detail.
What is a Carry Bit?
A carry bit is generated when two binary digits are added together, and the result is greater than or equal to 2. In such a case, a carry bit is generated, which represents the carry-over to the next column of digits.
For example, when we add 1 + 1, the result is 10 in binary, where 1 is the sum and 0 is the carry bit.
Why Half-Adders Cannot Accept a Carry Bit from a Previous Stage?
Half-adders have two inputs, A and B, and two outputs, S (sum) and C (carry). The output S represents the sum of A and B, while the output C represents the carry-over to the next column of digits.
However, half-adders do not have any input to accept a carry bit from a previous stage. This means that if we want to add more than two binary digits, we need to use multiple half-adders connected in series, which is not an efficient way of performing addition.
For example, if we want to add three binary digits, A, B, and C, we need to use two half-adders. First, we add A and B using a half-adder to get the sum S1 and carry C1. Then, we add S1 and C using another half-adder to get the final sum S2 and carry C2.
However, if we had a full-adder instead of a half-adder, we could add three binary digits using only one full-adder, which is much more efficient.
Conclusion
In conclusion, half-adders have a major limitation in that they cannot accept a carry bit from a previous stage. This limitation makes it inefficient to perform addition of more than two binary digits using only half-adders. To overcome this limitation, we need to use full-adders or other advanced digital circuits.
Free Test
FREE
| Start Free Test |
Community Answer
Half-adders have a major limitation in that they cannot __________a)Ac...
Half-adders have a major limitation in that they cannot accept a carry bit from a previous stage, meaning that they cannot be chained together to add multi-bit numbers. However, the two output bits of a half-adder can also represent the result A+B=3 as sum and carry both being high.
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
Question Description
Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer?.
Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Half-adders have a major limitation in that they cannot __________a)Accept a carry bit from a present stageb)Accept a carry bit from a next stagec)Accept a carry bit from a previous staged)Accept a carry bit from the following stagesCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup