Why is Manganin one of the preferred materials to make standard resistances ?

Explanation

To answer the question of why Manganin is one of the preferred materials to make standard resistances, we can break down the explanation into several key points:

### Step-by-Step Solution:

1. **Understanding Resistivity**:
- The resistance \( R \) of a material is given by the formula:
\[
R = \frac{\rho L}{A}
...