Updated: Dec 9, 2025 | Source: 2024-2028 Question Pool | Topic: E6C
E6C11E6C

In Figure E6-3, which is the schematic symbol for the NOT operation (inversion)?

Diagram for question E6C11

Deep Dive: E6C11

The correct answer is C: 5. In Figure E6-3, which is the schematic symbol for the NOT operation (inversion) is 5. Symbol 5 represents a NOT gate (inverter). For amateur radio operators, this is important for digital circuits. Understanding this helps when reading schematics.

Why Other Answers Are Wrong

Option A (2): Incorrect. Symbol 2 isn't NOT gate - symbol 5 is. Symbol 2 is wrong. Option B (4): Incorrect. Symbol 4 isn't NOT gate - symbol 5 is. Symbol 4 is wrong. Option D (6): Incorrect. Symbol 6 isn't NOT gate - symbol 5 is. Symbol 6 is wrong.

Exam Tip

NOT operation symbol in Figure E6-3 = 5. Think 'N'OT = '5'. Symbol 5 represents a NOT gate (inverter). Not 2, not 4, not 6 - just 5.

Memory Aid

NOT operation symbol in Figure E6-3 = 5. Think 'N'OT = '5'. Symbol 5 represents a NOT gate (inverter). Important for digital circuits.

Real-World Example

In Figure E6-3: Symbol 5 is the schematic symbol for the NOT operation (inversion). This symbol shows the characteristic NOT gate representation. This is the symbol - 5 for NOT operation.

Source & Coverage

Question Pool: 2024-2028 Question Pool

Subelement: E6C

Reference: 2024-2028 Question Pool · E6 - Circuit Components

Key Concepts

Figure E6-3 Schematic symbol NOT operation Inversion 5

Official Pool Source

Question text and answer key are synchronized with the current NCVEC Extra Class pool and mapped to the E6C topic.