McqMate
| Q. |
Let A and B is the input of a subtractor then the output will be |
| A. | a xor b |
| B. | a and b |
| C. | a or b |
| D. | a exnor b |
| Answer» A. a xor b | |
| Explanation: the subtractor has two outputs borow and difference. since, the difference output of a subtractor is given by ab’ + ba’ and this is the output of a xor gate. so, the final difference output is ab’ + ba’. | |
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