Search any question & find its solution
Question:
Answered & Verified by Expert
Two car garages have a common gate which needs to open automatically when a car enters either of the garages or cars enter both. Devise a circuit that resembles this situation using diodes for this situation.
Solution:
2292 Upvotes
Verified Answer
When a car enters in the gate, any one or both are open. So, the device is shown in figure :-
$$
\text { So, OR gate gives the desired output shown in truth table :- }
$$
$$
\begin{array}{|c|c|c|}
\hline \mathrm{A} & \mathrm{B} & \mathrm{C} \\
\hline 0 & 0 & 0 \\
0 & 1 & 1 \\
1 & 0 & 1 \\
1 & 1 & 1 \\
\hline
\end{array}
$$
$$
\text { So, OR gate gives the desired output shown in truth table :- }
$$
$$
\begin{array}{|c|c|c|}
\hline \mathrm{A} & \mathrm{B} & \mathrm{C} \\
\hline 0 & 0 & 0 \\
0 & 1 & 1 \\
1 & 0 & 1 \\
1 & 1 & 1 \\
\hline
\end{array}
$$
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.