For the given circuit, the input digital signals are applied at the terminals A, B and C. What would be the output at the terminal y?
The Correct Option is C
Solution and Explanation
Solution
To determine the output at the terminal y, we need to analyze the given digital circuit. The circuit consists of two AND gates and one OR gate.
Step-by-Step Analysis:
- Inputs: The inputs are digital signals applied at terminals A, B, and C as shown in the waveform diagram.
- First AND Gate: This gate has inputs A and B. The output of the AND gate will be high (1) only when both A and B are high.
- Second AND Gate: This gate has inputs A and C. Similarly, this output will be high only when both A and C are high.
- OR Gate: The two AND gate outputs are inputs to this OR gate. The OR gate output, which is y, will be high if at least one of its inputs is high.
Determining Output at y:
- Using the timing diagram, check intervals t1 to t6 to see when both conditions for each AND gate are satisfied.
- At times when any AND gate provides a high output, the OR gate will produce a high output.
Analysis:
The waveform shows that:
- During specific periods, both A and B are high, allowing the first AND gate to output high.
- Similarly, for other periods, both A and C are high, allowing the second AND gate to output high.
Therefore, analyzing the diagram shows that terminal y will be high at intervals matching either of the above conditions.
Conclusion:
By analyzing the logic gates and the input signal conditions, the correct output at terminal y is represented by the waveform:
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Concepts Used:
Logic Gates
AND Gate
It is the gate, where a circuit performs an AND operation. It has n number of input where (n >= 2) and one output.
OR Gate
It is the gate, where a circuit performs an OR operation. It has n number of input where (n >= 2) and one output.
NOT Gate
An inverter is also called NOT Gate. It has one input and one output where the input is A and the output is Y.
NAND Gate
A NAND operation is also called a NOT-AND operation. It has n number of input where (n >= 2) and one output.
NOR Gate
A NOR operation is also called a NOT-OR operation. It has n number of input where (n >= 2) and one output.
XOR Gate
XOR or Ex-OR gate is a specific type of gate that can be used in the half adder, full adder, and subtractor.
XNOR Gate
XNOR gate is a specific type of gate, which can be used in the half adder, full adder, and subtractor. The exclusive-NOR gate is flattened as an EX-NOR gate or sometimes as an X-NOR gate. It has n number of input (n >= 2) and one output.