1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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: Seemingly simple question that I managed to be stumped on.

  1. Mar 24, 2012 #1
    This is in my grad electromagnetism class but it seems like a very simple question so I was unsure of where to post it.

    1. The problem statement, all variables and given/known data
    All the problem says is to evaluate the following (including units)


    2. Relevant equations

    [tex]\frac{1}{\sqrt{\mu_0 \epsilon_0}}=c[/tex]

    3. The attempt at a solution

    So using the above formula, this is just simply [itex]\mu_0 c[/itex] which happens to equal around 376.7. The problem is, I do not know what this value is. is this a significant number? The units would be H/s.
  2. jcsd
  3. Mar 24, 2012 #2


    User Avatar

    Staff: Mentor

    Yes it's a significant number. Hint: units H/s are equivalent to Ohms :wink:
  4. Mar 24, 2012 #3
    I did some internet searching and found an article explaining this. The article says it is called the "Impedance of free space." Gives a pretty good explanation :]


Share this great discussion with others via Reddit, Google+, Twitter, or Facebook