Electronics - Arithmetic Operations and Circuits - Discussion

5. 

The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits:

[A]. increase ripple delay
[B]. add a 1 to complemented inputs
[C]. reduce propagation delay
[D]. determine sign and magnitude

Answer: Option C

Explanation:

No answer description available for this question.

Swathi said: (Mar 29, 2013)  
Look-ahead and carry adders are low delay based adders&high speed.

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