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If A and B are the inputs of a half adder, the carry is given by __________

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If A and B are the inputs of a half adder, the carry is given by __________

(a) A AND B

(b) A OR B

(c) A XOR B

(d) A EX-NOR B

I got this question during an internship interview.

This is a very interesting question from Half Adder & Full Adder topic in chapter Arithmetic Circuits of Digital Circuits

1 Answer

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Right choice is (a) A AND B

To explain: If A and B are the inputs of a half adder, the carry is given by: A(AND)B, while the sum is given by A XOR B.

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