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Homework Help: Self Inductance of a stright wire become infinite when ingnoring maxwell's extra term

  1. Nov 8, 2009 #1
    1. The problem statement, all variables and given/known data

    Show that the calculated self-inductance of a long straight wire of length l and outer
    radius R becomes infinite when Maxwell’s extra term in the generalisation ofAmpere’s
    law is ignored.

    2. Relevant equations

    (intergral over a closed curve) = meu0.I + meu0.(permitivity of free space) (d (magnetic flux))/dt

    3. The attempt at a solution

    I am very stuck on this. i considered the magnetic field flux both inside and outside the wire. Each magnetic field line must contribute to the total flux, but only once., Is this possibly to do with the two independant flux's interaction with each other?

    Id appreciate any hints or help in moving me the right way!
  2. jcsd
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