Transistor output characteristic curves are the graphs drawn with

Options

A. Collector current `I_C` on y-axis and the collector emitter voltage` V_(CE)` on X-axis for a constant base current
B. Base current `I_B ` on y-axis and the base -emitter voltage `V_(BE)` on x-axis for a constant collector emitter voltage
C. Base current `I_B` on y-axis and the collector emitter voltage `V_(CE)` on X-axis for a constant collector current
D. Base current `I_B `on y-axis and collector current `I_C ` on X-axis with constant base - emitter voltage

Answer

To solve the question regarding the transistor output characteristic curves, we need to understand the definitions and relationships involved in the characteristics of a transistor. Let's break down the solution step by step.

### Step-by-Step Solution:

1. **Understanding Transistor Output Characteristics**:
- Transistor output characteristics are graphical representations that show how the collector current (I_C) varies with the collector-emitter voltage (V_CE) for different values of base current (I_B).

2. **Identifying the Axes**:
- In these characteristic curves, the Y-axis typically represents the collector current (I_C), while the X-axis represents the collector-emitter voltage (V_CE).

3. **Constant Parameter**:
- The curves are plotted for constant values of the base current (I_B). This means that for each curve on the graph, the base current is held constant while varying the collector-emitter voltage (V_CE) to observe the changes in collector current (I_C).

4. **Analyzing the Options**:
- **Option 1**: Collector current (I_C) on Y-axis and collector-emitter voltage (V_CE) on X-axis for a constant base current.
- **Option 2**: Base current (I_B) on Y-axis and base-emitter voltage (V_BE) on X-axis for a constant collector-emitter voltage.
- **Option 3**: Base current (I_B) on Y-axis, collector-emitter voltage (V_CE) on X-axis for a constant collector current.
- **Option 4**: Base current (I_B) on Y-axis and collector current (I_C) on X-axis with constant base-emitter voltage.

5. **Selecting the Correct Option**:
- Based on the definitions and the analysis above, the correct representation for the transistor output characteristic curves is **Option 1**: Collector current (I_C) on Y-axis and collector-emitter voltage (V_CE) on X-axis for a constant base current.

### Final Answer:
The correct answer is **Option 1**: Collector current (I_C) on Y-axis and collector-emitter voltage (V_CE) on X-axis for a constant base current.

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