A wire has a resistance of `16 Omega`. It is melted and drawn into a wire of half its length. Calculate the resistance of new wire. What is the percentage change in its resistance?

Explanation

To solve the problem, let's break it down into steps:

1. **Given Data:**
- Initial resistance, \( R = 16 \Omega \)
- The wire is melted and drawn into a wire of half its original length.

2. **Concepts Involved:**
- Resistance \( R \) of a wire is given by the formula:
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