Q. Identify the true statement for OR gate
A) Output $Y$ will be 1 when input $A$ or $B$ or both are 1
B) Output $Y$ will be 0 when the either of the inputs $A$ or $B\ $is 1
C) Output $Y$ will be 1 only when both the inputs $A$ and $B\ $are 1
D) Output $Y$ will be 1 only when either of the inputs $A$ and $B\ $are 1
Explanation
(a) In an OR gate, output $Y$ is 1 only when either or both the inputs $A$ and $B$ are 1.
The truth table is shown below.
[table] A | $\mathbf{B}$ | $\mathbf{Y}$ ; $0$ $0$ $1$ $1$ | $0$ $1$ $0$ $1$ | $0$ $1$ $1$ $1$ [/table]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.