JEE Main 2025 · PhysicsMultiple choiceDiagram basedMediumDiagram reading
JEE Main 3 April 2025, Shift 1, Physics Q45
Question 45 of 75 in this shift, Physics question 20 of 25, Section A.
Choose the correct logic circuit for the given truth table having inputs A and B.
Inputs A, B / Output Y:
A=0,B=0: Y=0
A=0,B=1: Y=0
A=1,B=0: Y=1
A=1,B=1: Y=1
The figure, in words
Truth table with inputs A, B and output Y; the four options are logic-gate circuits built from an OR gate, an AND gate and possibly a NOT gate.- (1)[figure: logic circuit - A and B feed an OR gate; the OR output goes to one input of an AND gate; a wire taken from input A passes through a NOT gate to the other AND input; output Y]
- (2)[figure: logic circuit - A and B feed an OR gate; the OR output goes to one input of an AND gate; a wire taken from input B goes directly (no NOT) to the other AND input; output Y]
- (3)[figure: logic circuit - A and B feed an OR gate; the OR output passes through a NOT gate to one input of an AND gate; a wire taken from input A goes directly to the other AND input; output Y]
- (4)[figure: logic circuit - A and B feed an OR gate; the OR output goes directly to one input of an AND gate; a wire taken from input A goes directly to the other AND input; output Y]Official answer
Official answer
Option 4
NTA final key.
- Topic
- Logic Gates
- Idea tested
- Combinational Logic Circuits