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Consider the following truth table for a logic circuit with inputs A and B , and output Y : A B Y 0 0 0 0 1 1 1 0 0 1 1 0 Which of the following logic circuits produces this truth table?

Options

  1. AInput A and the output of a NOT gate connected to input B are fed into an AND gate.
  2. BInputs A and B are fed directly into an AND gate.
  3. CThe output of a NOT gate connected to input A , along with input B , are fed into an AND gate.
  4. DInputs A and B are fed directly into a NOR gate.

Correct answer

C. The output of a NOT gate connected to input A , along with input B , are fed into an AND gate.

Step-by-step solution

From the given truth table, the output Y is 1 only when A = 0 and B = 1 . This means the Boolean expression for the output is Y = A B . To implement this logic, input A must be inverted using a NOT gate to get A . Then, this inverted signal A and the original input B must be fed into an AND gate. Therefore, the correct circuit consists of the output of a NOT gate connected to input A , along with input B , being fed into an AND gate. Answer: The output of a NOT gate connected to input A , along with input B , are f

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