2. The circle in the logic symbol of a NOT gate is known as what? A. combinational circuit B. sequential circuit C. completion sphere O D. inversion bubble O E. NAND gate

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Chapter1: Introduction
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**Question 2:**

The circle in the logic symbol of a NOT gate is known as what?

- A. combinational circuit
- B. sequential circuit
- C. completion sphere
- D. inversion bubble
- E. NAND gate

**Explanation:**

In digital electronics, the NOT gate is a basic logic gate that performs an inversion operation. The circle at the output of a NOT gate symbol is referred to as an "inversion bubble." This bubble indicates the inversion of the input signal, turning a logic high (1) into a logic low (0) and vice versa.
Transcribed Image Text:**Question 2:** The circle in the logic symbol of a NOT gate is known as what? - A. combinational circuit - B. sequential circuit - C. completion sphere - D. inversion bubble - E. NAND gate **Explanation:** In digital electronics, the NOT gate is a basic logic gate that performs an inversion operation. The circle at the output of a NOT gate symbol is referred to as an "inversion bubble." This bubble indicates the inversion of the input signal, turning a logic high (1) into a logic low (0) and vice versa.
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