Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A metallic wire of length 1m is stretched to double its length. Calculate the ratio of its initial andfinal resistance assuming that there is no change in

its density onstretching.


Initial Resistance = ρ L1/π x^{2} [/tex]
Final Resistance = ρ 2L1/π4 x^{2}
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts