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14. Semicondutor electronics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics14. Semicondutor electronics1 Mark
MCQ
The truth table for this gvien circuit is:
  • A
    $A$ $B$ $Y$
    $0$ $0$ $1$
    $0$ $1$ $1$
    $1$ $0$ $1$
    $1$ $1$ $0$
  • ✓
    $A$ $B$ $Y$
    $0$ $0$ $0$
    $0$ $1$ $1$
    $1$ $0$ $0$
    $1$ $1$ $1$
  • C
    $A$ $B$ $Y$
    $0$ $0$ $0$
    $0$ $1$ $0$
    $1$ $0$ $0$
    $1$ $1$ $1$
  • D
    $A$ $B$ $Y$
    $0$ $0$ $1$
    $0$ $1$ $0$
    $1$ $0$ $1$
    $1$ $1$ $0$
✓

Answer

Correct option: B.
$A$ $B$ $Y$
$0$ $0$ $0$
$0$ $1$ $1$
$1$ $0$ $0$
$1$ $1$ $1$
b
$\mathrm{Y}  =\mathrm{A} \cdot \mathrm{B}+\overline{\mathrm{A}} \cdot \mathrm{B} $

$ =(\mathrm{A}+\overline{\mathrm{A}}) \cdot \mathrm{B} $

$\mathrm{Y}  =1 \cdot \mathrm{B} $

$\mathrm{Y}  =\mathrm{B}$

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