JEE MAIN - Physics (2022 - 25th July Morning Shift - No. 20)
In the circuit, the logical value of $$A=1$$ or $$B=1$$ when potential at $$A$$ or $$B$$ is $$5 \mathrm{~V}$$ and the logical value of $$A=0$$ or $$B=0$$ when potential at $$A$$ or $$B$$ is $$0 \mathrm{~V}$$.
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The truth table of the given circuit will be :
$$\matrix{
A & B & Y \cr
0 & 0 & 0 \cr
1 & 0 & 0 \cr
0 & 1 & 0 \cr
1 & 1 & 1 \cr
} $$
$$\matrix{
A & B & Y \cr
0 & 0 & 0 \cr
1 & 0 & 1 \cr
0 & 1 & 1 \cr
1 & 1 & 1 \cr
} $$
$$\matrix{
A & B & Y \cr
0 & 0 & 0 \cr
1 & 0 & 0 \cr
0 & 1 & 0 \cr
1 & 1 & 0 \cr
} $$
$$\matrix{
A & B & Y \cr
0 & 0 & 1 \cr
1 & 0 & 1 \cr
0 & 1 & 1 \cr
1 & 1 & 0 \cr
} $$
Explanation
Given circuit is equivalent to an AND gate.
$$\therefore$$ $$\matrix{ A & B & Y \cr 0 & 0 & 0 \cr 0 & 1 & 0 \cr 1 & 0 & 0 \cr 1 & 1 & 1 \cr } $$
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