MCQ
To get output ‘$1$’ at $R$, for the given logic gate circuit the input values must be
- A$X = 0, Y = 1$
- B$X = 1, Y = 1$
- ✓$X = 1, Y = 0$
- D$X = 0, Y = 0$
✓
Answer
Correct option: C.
$X = 1, Y = 0$
c
$\mathrm{R}=\overline{\mathrm{P}+\mathrm{Q}} $ $=\overline{(\bar{x}+y)+(\overline{x\bar{y}})}$
$\mathrm{R}=\overline{\mathrm{P}+\mathrm{Q}} $ $=\overline{(\bar{x}+y)+(\overline{x\bar{y}})}$
$=\overline{(\bar{x}+y)}\cdot (x\bar{y})$
$=(x \cdot \bar{y}) \cdot(x \bar{y})$
$=x \bar{y}$
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