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Discussion :: Digital Electronics

  1. A carry look ahead adder is frequently used for addition because

    2. A.
    it costs less
    B.
    it is faster
    C.
    it is more accurate
    D.
    is uses fewer gates

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    Answer : Option B

    Explanation :

    In look ahead carry adder the carry is directly derived from the gates when original inputs are being added. Hence the addition is fast. This process requires more gates and is costly.

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