The NOR gate is OR gate followed bya)AND gateb)OR gatec)NOT gated)None...
A NOR gate is a logic gate which gives a positive output only when both inputs are negative. Like NAND gates, NOR gates are so-called "universal gates" that can be combined to form any other kind of logic gate.
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The NOR gate is OR gate followed bya)AND gateb)OR gatec)NOT gated)None...
Understanding the NOR Gate
The NOR gate is a fundamental digital logic gate that produces an output which is false only when at least one of its inputs is true. To understand how it functions, it's essential to look at its construction.
Components of the NOR Gate
- The NOR gate can be viewed as a combination of two basic gates:
- An OR gate
- A NOT gate
Functionality Breakdown
- Step 1: OR Gate Operation
- The first part of the NOR gate is an OR gate, which takes two or more inputs.
- The OR gate outputs true (1) if at least one of its inputs is true (1).
- Step 2: NOT Gate Operation
- The output of the OR gate is then fed into a NOT gate.
- The NOT gate inverts the output of the OR gate. Therefore, if the OR gate outputs true, the NOT gate will output false (0), and vice versa.
Truth Table Comparison
- The truth table for a NOR gate shows that it outputs true (1) only when all its inputs are false (0).
- For example:
- Inputs: 0, 0 → Output: 1
- Inputs: 0, 1 → Output: 0
- Inputs: 1, 0 → Output: 0
- Inputs: 1, 1 → Output: 0
In summary, the NOR gate's behavior is a direct result of its OR gate followed by a NOT gate. This structure allows it to perform its unique logic function, making option 'C' the correct answer. The combination of these gates is what defines the NOR operation in digital electronics.
The NOR gate is OR gate followed bya)AND gateb)OR gatec)NOT gated)None...
The NOR Gate Explained
The NOR gate is a fundamental digital logic gate that performs a specific function in Boolean algebra. Understanding how it operates can help clarify why it is equivalent to an OR gate followed by a NOT gate.
Definition of NOR Gate
- A NOR gate is a combination of an OR gate followed by a NOT gate.
- It outputs true (1) only when both of its inputs are false (0).
Functionality of OR Gate
- An OR gate outputs true if at least one of its inputs is true.
- If the inputs are A and B, the output (A OR B) is true if A = 1 or B = 1.
Functionality of NOT Gate
- A NOT gate inverts the input it receives.
- If the input to the NOT gate is true (1), the output will be false (0), and vice versa.
Combining OR and NOT for NOR
- When you take the output from an OR gate and pass it through a NOT gate, you effectively invert the output.
- For example, if A = 0 and B = 0, the OR gate outputs 0, and the NOT gate keeps it at 1 (since NOT(0) = 1).
- However, if either A or B is 1, the OR gate outputs 1, and the NOT gate will then output 0 (since NOT(1) = 0).
Conclusion
- Therefore, the NOR gate can be represented as an OR gate followed by a NOT gate.
- This leads to the correct answer being option 'C': "NOT gate".
Understanding this relationship is crucial for designing and analyzing digital circuits.