Question:
What operation is performed by the given circuit?
What operation is performed by the given circuit?
Show Hint
Subtraction can be implemented using addition by converting the second operand into its Two’s Complement form (\(\bar{B} + 1\)).
Updated On: Feb 4, 2026
- B to G Converter
- Subtractor
- Multiplier
- None of the above
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Understanding the Circuit.
The given circuit consists of:
- A Full Adder (FA)
- An XOR gate that inverts \( y \) (i.e., \( y' = y \oplus 1 = \bar{y} \))
- A Carry-in value of 1
Binary Subtraction via Two’s Complement: \[ A - B = A + \bar{B} + 1 \] Here:
- \( x \) is directly passed to the FA.
- \( y \) is complemented via XOR with 1.
- Carry-in = 1.
This is the standard way to perform subtraction using addition, confirming that the circuit acts as a subtractor.
The given circuit consists of:
- A Full Adder (FA)
- An XOR gate that inverts \( y \) (i.e., \( y' = y \oplus 1 = \bar{y} \))
- A Carry-in value of 1
Binary Subtraction via Two’s Complement: \[ A - B = A + \bar{B} + 1 \] Here:
- \( x \) is directly passed to the FA.
- \( y \) is complemented via XOR with 1.
- Carry-in = 1.
This is the standard way to perform subtraction using addition, confirming that the circuit acts as a subtractor.
Was this answer helpful?
0
0
Top GATE EC Digital Electronics Questions
The content of the registers are \( R_1 = 25H \), \( R_2 = 30H \), and \( R_3 = 40H \). The following machine instructions are executed.
After execution, the content of registers \( R_1 \), \( R_2 \), \( R_3 \) areThe figure shows a 4-to-1 multiplexer. The inputs are connected as:
$I_0 = 1$, $I_1 = 0$, $I_2 = 1$, $I_3 = y$.
The select lines are $S_1 = x$ and $S_0 = z$.
Find the Boolean function $f(x,y,z)$.
f(w, x, y, z) =\( \Sigma\) (0, 2, 5, 7, 8, 10, 13, 14, 15)
Find the correct simplified expression.
Top GATE EC Questions
- Consider the discrete-time system below with input \( x[n] \) and output \( y[n] \). In the figure, \( h_1[n] \) and \( h_2[n] \) denote the impulse responses of LTI Subsystems 1 and 2, respectively. Also, \( \delta[n] \) is the unit impulse, and \( b>0 \).
Assuming \( h_2[n] \neq \delta[n] \), the overall system (denoted by the dashed box) is _________.
\includegraphics[width=0.5\linewidth]{17.png} “I cannot support this proposal. My ___________ will not permit it.”
Courts : _________ :: Parliament : Legislature ; (By word meaning)
What is the smallest number with distinct digits whose digits add up to 45?
- In a class of 100 students, (i) there are 30 students who neither like romantic movies nor comedy movies, (ii) the number of students who like romantic movies is twice the number of students who like comedy movies, and (iii) the number of students who like both romantic movies and comedy movies is 20. How many students in the class like romantic movies?
View More Questions