To get an output $Y=1$ from the circuit shown below, the input must be

To get an output $Y=1$ from the circuit shown below, the input must be

  1. (a)
  2. (b)
  3. (c)
  4. (d)

Solution

$\text {Gate I is OR gate } \mathrm{Y}^{\prime}=\mathrm{A}+\mathrm{B}$ Gate II is AND gate $\mathrm{Y}=\mathrm{Y}^{\prime} \cdot \mathrm{C}$ $\therefore \mathrm{A}=1, \mathrm{~B}=0, \mathrm{C}=1$ will give $\mathrm{Y}=1$

Asked in: NEET 2010 (Screening)

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