Question 45: Semiconductors and Logic Gates

Question

Following gates section is connected in a complete suitable circuit.
For which of the following combination, bulb will glow (ON) :

Accepted Answer

For bulb to glow, there should be low-high combination across the bulb.
If $$A=1, B=0, C=0$$ & $$D=0$$
$$\overline{\overline{1}+1}=0 \quad \& \quad \overline{0}=1$$
So, bulb will glow.

Answer

$$\mathrm{A}=1, \mathrm{~B}=1, \mathrm{C}=1, \mathrm{D}=0$$

Answer

$$\mathrm{A}=1, \mathrm{~B}=0, \mathrm{C}=0, \mathrm{D}=0$$

Answer

$$\mathrm{A}=0, \mathrm{~B}=0, \mathrm{C}=0, \mathrm{D}=1$$

Answer

$$\mathrm{A}=0, \mathrm{~B}=1, \mathrm{C}=1, \mathrm{D}=1$$

Semiconductors and Logic Gates

Following gates section is connected in a complete suitable circuit. For which of the following combination, bulb will glow (ON) :

Choose the correct answer: