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Homework Help: Easy Question- cant seem to get it

  1. Dec 10, 2007 #1
    1. The problem statement, all variables and given/known data
    What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 100V/m?

    2. Relevant equations

    3. The attempt at a solution

    100/(3*10^8) = .0000003

    Mastering physics says this is wrong though ^^
    Last edited: Dec 11, 2007
  2. jcsd
  3. Dec 11, 2007 #2


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    Staff Emeritus
    Science Advisor

    That looks fine to me. Now express this as a decimal.
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