Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: How to solve resistance problem

  1. Apr 13, 2004 #1
    The resistance of a certain type of wire is listed as .4 Ohms/meter. What is the resistance if 50 meaters of the wire?

    R=(.4 Ohms/meter)*(50 m) / Area

    what is the area?

    how do I solve this?
  2. jcsd
  3. Apr 13, 2004 #2
    You are confusing the given information with "resistivity".

    If the wire has a resistance of 0.4 Ohms per meter, what would the resistance of a 1 meter long wire? And what about the resistance of a 50 meter wire?
  4. Apr 14, 2004 #3
    maybe the resistivity is 0.4 ohm meters
  5. Feb 19, 2005 #4
    what is ohms per meter a measure of?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook