What is component 1 in figure T-1?

Q: What is component 1 in figure T-1?

The correct answer is A: Resistor. The correct answer is Resistor. Based on the schematic diagram in figure T-1, component 1 is a resistor, identified by its standard schematic symbol (a zigzag line or rectangular box). Resistors are fundamental passive components used to limit current, divide voltage, set bias points, and provide load resistance in circuits. In schematics, resistors are one of the most common components, appearing in virtually every circuit. For amateur radio operators, being able to identify resistors in schematics is essential for reading circuit diagrams, understanding how circuits work, and troubleshooting equipment. The resistor symbol is one of the first symbols learned when studying electronics.

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Deep Dive: T6C02

The correct answer is Resistor. Based on the schematic diagram in figure T-1, component 1 is a resistor, identified by its standard schematic symbol (a zigzag line or rectangular box). Resistors are fundamental passive components used to limit current, divide voltage, set bias points, and provide load resistance in circuits. In schematics, resistors are one of the most common components, appearing in virtually every circuit. For amateur radio operators, being able to identify resistors in schematics is essential for reading circuit diagrams, understanding how circuits work, and troubleshooting equipment. The resistor symbol is one of the first symbols learned when studying electronics.

Why Other Answers Are Wrong

Option B (Transistor): Incorrect. Transistors have a different symbol - typically showing three terminals (emitter, base, collector for BJTs) with specific markings. Component 1 shows the resistor symbol, not a transistor. Option C (Battery): Incorrect. Batteries are shown as a series of long and short parallel lines. Component 1 shows the resistor symbol (zigzag or rectangle), not a battery symbol. Option D (Connector): Incorrect. Connectors have different symbols, often showing multiple pins or connection points. Component 1 shows the standard resistor symbol.

Exam Tip

Resistors are shown as zigzag lines or rectangles in schematics. If you see the zigzag/rectangle symbol, it's a resistor. Transistors, batteries, and connectors have distinctly different symbols.

Memory Aid

Resistor = zigzag or rectangle symbol. Think 'R'esistor = 'R'ectangle or 'R'ibbon (zigzag) symbol. One of the simplest and most common symbols.

Real-World Example

When reading a schematic for a voltage divider circuit, you see component 1 as a resistor symbol (zigzag line) connected between the power supply and ground. This resistor limits current and creates a voltage drop. Being able to identify this as a resistor helps you understand the circuit's function - in this case, it's part of a voltage divider that sets a bias voltage for another component.

Source & Coverage

Question Pool: 2026-2030 Question Pool

Subelement: T6C

Reference: 2026-2030 Question Pool · T6 - Electrical components

Key Concepts

Resistor identification Schematic symbols Component identification Schematic reading

Official Pool Source

Question text and answer key are synchronized with the current NCVEC Technician Class pool and mapped to the T6C topic.