1. Tardigrade
  2. Question
  3. Physics
  4. A uniform wire of length l and radius r has a resistance of 100 Ω. It is recast into a wire of radius (r/2). The resistance of new wire will be

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A uniform wire of length $l$ and radius $r$ has a resistance of $100\, \Omega$. It is recast into a wire of radius $\frac{r}{2}$. The resistance of new wire will be

Solution:

$R \propto \frac{1}{r^{4}}$