Digital Electronics - ECE Questions and Answers

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The inputs to a 3 bit binary adder are 111₂ and 110₂. The output will be

101

1101

1111

1110

Answer : Option B

Explanation :

Rules for binary addition.

0 + 0 = 0

0 + 1 = 1 + 0 = 1

1 + 1 = 10

i.e., 1 + 1 equals 0 with a carry of 1 to next higher column. 1 + 1 + 1 = 11

i.e., 1 + 1 + 1 equals 1 with a carry of 1 to next higher column.

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