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Solving for current

  1. Jan 30, 2007 #1
    I need help solving a problem
    A 60 g hollow copper cylinder is 10 cm long and has an inner diameter of 1.0 cm. The current density along the length of the cylinder is 170,000 A/m^2. What is the current in the cylinder?

    the electron density for copper is 8.5E28

    thanks for your help
  2. jcsd
  3. Jan 30, 2007 #2


    User Avatar
    Gold Member

    In the future, post questions like this in the homework section.

    Any thoughts on how to approach this?
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