A particular resistance wire has a resistance of 3.0 ohm per metre. Find :
The resistance of 5 m length of a wire of the same material, but with twice the area of cross section.

Explanation

To find the resistance of a 5 m length of wire made of the same material but with twice the area of cross-section, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the given data**:
- The resistance of the wire is given as 3.0 ohms per meter.
- The length of the new wire is 5 meters.
- The new wire has twice the area of cross-section compared to the original wire.
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