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In which operation carry is obtained?(a) Subtraction(b) Addition(c) Multiplication(d) Both addition and subtractionI got this question in examination.The above asked question is from Half Adder & Full Adder in portion Arithmetic Circuits of Digital Circuits

Answer»

The correct answer is (B) Addition

The EXPLANATION is: In addition, carry is OBTAINED. For example: 1 0 1 + 1 1 1 = 1 0 0; in this example carry is obtained after 1st addition (i.e. 1 + 1 = 1 0). In subtraction, BORROW is obtained. LIKE, 0 – 1 = 1 (borrow 1).



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