The fluxed resistance is called

Options

A. reeostat
B. resistor
C. key
D. switch

Answer

To solve the question "The fixed resistance is called," we need to analyze the options provided and understand the definitions of each term.

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Fixed Resistance**: This refers to a resistance that has a constant value and cannot be changed.
- **Resistor**: A component that provides resistance in an electrical circuit. Fixed resistors have a specific resistance value.
- **Rheostat**: A variable resistor that can change its resistance value.
- **Key**: A device used to open or close a circuit.
- **Switch**: A device that can make or break a circuit.

2. **Analyze the Options**:
- **Option 1: Rheostat** - This is a variable resistor, not a fixed one.
- **Option 2: Resistor** - This is a general term for a component that provides resistance, and it can be fixed or variable. However, in this context, it refers to fixed resistance.
- **Option 3: Key** - This is not related to resistance; it is used to control the flow of current.
- **Option 4: Switch** - Similar to a key, it is used to open or close a circuit and does not provide resistance.

3. **Select the Correct Answer**:
- Based on the definitions and the analysis of the options, the term that best describes a fixed resistance is **Resistor**.

### Final Answer:
The fixed resistance is called a **Resistor**.

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