Two wires of equal length one of copper and other of manganin have the same resistance. Which wire is thicker?

Explanation

To solve the problem, we will use the formula for resistance and the relationship between resistivity, length, and cross-sectional area.

### Step-by-Step Solution:

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