Plot a graph showing the variation of resistance of a conducting wire as function of its radius, keeping the length of a wire and its temperature as constant.

Explanation

To plot the graph showing the variation of resistance of a conducting wire as a function of its radius, we can follow these steps:

### Step 1: Understand the relationship between resistance, length, and radius
The resistance \( R \) of a cylindrical conductor (like a wire) can be expressed using the formula:
\[ R = \frac{\rho L}{A} \]
where:
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