JEE Main201910 Jan 2019Morning ShiftPhysicsSemiconductorsActual
To get output '1' at R , for the given logic gate circuit the input values must be:
Options
- AX = 1 , Y = 1
- BX = 0 , Y = 0
- CX = 0 , Y = 1
- DX = 1 , Y = 0
Correct answer
D. X = 1 , Y = 0
Step-by-step solution
R = ( X ¯ + Y ) + ( X ⋅ Y ¯ ¯ ) ¯ = ( X ¯ + Y ¯ ) ⋅ ( X . Y ¯ ¯ ¯ ) = ( X . Y ¯ ) ⋅ ( X . Y ¯ ) = ( X . Y ¯ )