There is one hollow pipe of metal of length L . The inner radius of the pipe is `r_1` and the outer radius is `r_2` . The resistivity of material of pipe is `rho`. Find the resistance.

Explanation

To find the resistance of a hollow metal pipe, we can use the formula for resistance in terms of resistivity, length, and cross-sectional area. Here’s the step-by-step solution:

### Step 1: Understand the parameters
We have:
- Length of the pipe, \( L \)
- Inner radius of the pipe, \( r_1 \)
- Outer radius of the pipe, \( r_2 \)
- Resistivity of the material, \( \rho \)
...