The 2's complement of the binary number 0101 is:

2025

The 2's complement of the binary number 0101 is:

  1. A.

    1010

  2. B.

    1011

  3. C.

    1100

  4. D.

    1001

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Correct answer: B

To form the 2's complement of 0101, invert the bits to get 1010 and add 1. The result is 1011.

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