Give Boolean expression and Truth table for NOR gate.

Explanation

To derive the Boolean expression and truth table for a NOR gate, follow these steps:

### Step 1: Understand the NOR Gate
A NOR gate is a digital logic gate that outputs true or high (1) only when both inputs are false or low (0). It is a combination of an OR gate followed by a NOT gate.

### Step 2: Write the Boolean Expression
The Boolean expression for a NOR gate can be derived as follows:
- Let A and B be the inputs.
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