JEE Mains · Physics · STD 12 - 14. Semicondutor electronics
For the given logic circuit, which of the following inputs combination will make both LED\(-1\) and LED\(-2\) to glow?
- A \(A = 0, B = 1, C = 1\)
- B \(A = 1, B = 0, C = 0\)
- C \(A = 1, B = 0, C = 1\)
- D \(A = 1, B = 1, C = 0\)
Answer & Solution
Correct Answer
(C) \(A = 1, B = 0, C = 1\)
Step-by-step Solution
Detailed explanation
Let the output of the OR gate be \(Y_1\). \(Y_1 = A + B\) For LED-1 to glow, \(Y_1\) must be \(1\), which means \(A + B = 1\). Let the output of the first AND gate be \(Y_2\). \(Y_2 = Y_1 \cdot C = (A + B) \cdot C\) Let the output of the second AND gate be \(Y_3\).…
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