A 4-bit adder sums A = A3A2A1A0 and B = B3B2B1B0. Design a logic function F, such that: F = 1 if A + B > 10. Which of the following is the correct approach to implement this function?

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Electronics Engineering · Digital Electronics

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Generate the sum S = A + B and use a 4-bit comparator to check if S > 10

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Answer 1

Generate the sum S = A + B and use a 4-bit comparator to check if S > 10

Answer 2

Use only the carry-out from the addition of A3 + B3

Answer 3

Use a ripple-carry adder and check only the MSB

Answer 4

Implement F as F = A3 • B3

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