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QPages 419-421: Q34: HC Verma: Concepts of Physics - Volume 2 Semiconductors and Semiconductor Devices Pages 419-421: Q34 Solution: Design a logical circuit using AND, OR and NOT gates to…
⚠️ Common Exam Traps & Conceptual Pitfalls
In the expression $\bar{A}BC + \bar{B}CA$, the bar applies only to the variable immediately following it, not to the whole product. Use separate NOT gates for $A$ and $B$, then AND each with the remaining literals. Do not treat $\bar{A}BC$ as $\overline{A\cdot B\cdot C}$, which would require a different gate arrangement. Remember that each product term needs an AND gate, and the OR gate is used only to combine the two terms.
Design a logical circuit using AND, OR and NOT gates to evaluate .
Step-by-Step Verified Solution
**Answer:** Circuit uses AND, OR, NOT gates as shown.
**Step-by-Step Explanation:**
X = _BC + __CA.
Use NOT gates to get _ and __. Use AND gates to get _BC and __CA. Use OR gate to combine the two terms .
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