*Question T6C03:
What is component 2 in figure T-1?*  

*Correct Answer is  B: Transistor*  

### AI Response: (may contain errors)  

In question T6C03, we need to identify component 2 in figure T-1, which is a transistor.

### Explanation of the Correct Answer:
- **Transistor (Correct Answer)**: 
  - A transistor is a semiconductor device used to amplify or switch electronic signals. It typically has three terminals: the collector, base, and emitter. In circuit diagrams, transistors are often represented by specific symbols that include arrows indicating the direction of current flow. If component 2 has this characteristic symbol, it is indeed a transistor.

### Explanation of Incorrect Choices:
- **A: Resistor**: 
  - A resistor is a passive component that limits current flow in a circuit. It is represented by a zigzag line or a rectangle in circuit diagrams. If component 2 does not have this representation, it cannot be a resistor.

- **C: Indicator lamp**: 
  - An indicator lamp is used to show the status of a circuit (on/off). It is typically represented by a circle with two lines indicating the terminals. If component 2 does not resemble this symbol, it is not an indicator lamp.

- **D: Connector**: 
  - A connector is used to join two or more electrical circuits. It is usually depicted as a simple line or a pair of lines with dots. If component 2 does not match this representation, it cannot be a connector.

### Summary:
- The correct answer is **Transistor** because it matches the symbol and function of a transistor in electronic circuits.
- The other options are incorrect based on their distinct symbols and functions in circuit diagrams.

### Useful Rule of Thumb:
- Familiarize yourself with common electronic component symbols. This will help you quickly identify components in diagrams during the exam.