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Showing posts with label Problem 25.44 Mastering Physics. Show all posts
Showing posts with label Problem 25.44 Mastering Physics. Show all posts

Friday, April 16, 2010

Question 25.44 Mastering Physics

The question asks:

What is the maximum value of the electric field in an electromagnetic wave whose maximum intensity is 5.50 {\rm W/m^{2}}?
I know that I=C*e_o*E^2

(e_o is my way of saying epsilon not)

So I rearranged to solve for E

E=sqrt(I/c*e_o)

The answer I get is 45.5.... but its not correct?

Any Suggestions?