Among the following the resistance does not depend upon:

Options

A. length of conductor
B. area of cross-section
C. temperature
D. density

Answer

To determine which factor does not affect the resistance of a conductor, we can analyze the formula for resistance:

1. **Understanding the Formula**: The resistance \( R \) of a conductor is given by the formula:
\[ R = \frac{\rho L}{A} \]
where:
- \( R \) = resistance
- \( \rho \) = resistivity (material property)
- \( L \) = length of the conductor
- \( A \) = cross-sectional area of the conductor

2. **Identifying the Factors**:
- **Length of the Conductor (L)**: Resistance is directly proportional to the length of the conductor. If the length increases, the resistance increases.
- **Area of Cross Section (A)**: Resistance is inversely proportional to the area of cross-section. If the area increases, the resistance decreases.
- **Temperature**: Resistance also depends on temperature. Generally, as temperature increases, resistance increases for most conductors.
- **Density**: Density is a property that relates to mass and volume but does not directly affect the resistance of a conductor.

3. **Conclusion**: Among the listed options, the factor that does not affect the resistance is **Density**.

Thus, the answer is:
**Density does not depend on resistance.**

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