DB to W/m^2

  • Thread starter tiger1
  • Start date
  • #1
10
0

Homework Statement


I have a test coming up and I need to be able to convert dB to W/m^2 and vise versa. Could someone please explain to me how to do this?


Homework Equations


B=(10dB) log_10(I/I_0)
I_0 = 1.0*10^-12W/m^2

The Attempt at a Solution


Google, came up with nothing
 

Answers and Replies

  • #2
1,187
5
Solve for I --- B/(10dB) = log_10(I/I_0)
10^(B/10dB) = (I/I_0)
I = (I_0)10^(B/10dB)
 

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