Question

The number of full adders in a four-bit parallel adder is

• A. Two
• B. Three
• C. Four
• D. Five

Hint:

The number of full adders in a parallel adder is equal to the number of bits being added.

Answer 1

The Correct Option is C

In a parallel adder, each full adder adds two corresponding bits of the operands and a carry bit. For a four-bit parallel adder, you need four full adders, one for each bit of the operands.
Thus, the correct answer is \( 4 \).