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The output of a subtractor is given by (if A, B and X are the inputs).(a) A AND B XOR X(b) A XOR B XOR X(c) A OR B NOR X(d) A NOR B XOR XThe question was posed to me by my college director while I was bunking the class.Question is taken from Half & Full Subtractor in portion Arithmetic Circuits of Digital Circuits

Answer»

Correct answer is (b) A XOR B XOR X

The EXPLANATION: The difference OUTPUT of a subtractor is GIVEN by (if A, B and X are the INPUTS) A XOR B XOR X.



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