Question

What are the boolean expressions for the carry output of a 2-bit full adder?

1) C = A AND B
2) C = A OR B
3) = A XOR B
4) C = A NAND B

Answer 1

The boolean expression for the carry output of a 2-bit full adder is C = A AND B.

Step-by-step explanation:

The boolean expressions for the carry output of a 2-bit full adder can be determined by analyzing the truth table for the adder. Let's denote the inputs as A and B, and the carry output as C.

Truth table for a 2-bit full adder:

A
B
C


0
0
0


0
1
0


1
0
0


1
1
1

From the truth table, we can see that the boolean expression for the carry output is: C = A AND B.