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To add two 4-bit numbers using parallel adder circuit we require
  • a)
    4-full adders and 1-OR gate
  • b)
    S-haif adders
  • c)
    either (a) or (b)
  • d)
    neither (a) nor (b)
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
To add two 4-bit numbers using parallel adder circuit we requirea)4-fu...
To add two n-bit numbers using parallel adder circuit, we require
(n - 1) full adders and 1-half adder
or
n-full adders
or
(2n -1) half adders and (n - 1) OR gates Thus, to add two 4-bit numbers using parallel adder circuit, we require
3- full adder and 1 -half adder
or
4- full adders
or
7-half adder and 3 OR gates
Hence, option (d) is correct.
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To add two 4-bit numbers using parallel adder circuit we requirea)4-full adders and 1-OR gateb)S-haif addersc)either (a) or (b)d)neither (a) nor (b)Correct answer is option 'D'. Can you explain this answer?
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