Hello,(adsbygoogle = window.adsbygoogle || []).push({});

What is the max value of the eletric field at a distance 2.5m from 100W light bulb?

I have the formula E_o = [squ]2S/e_oc. This is what i have so far...

E_o = [squ]2(100W)/(8.85x10^-12C^2/Nm^2)(3x10^8m/s) = 274V/m.

My calculations are not right can someone help me with solving for this, plz?

Thanks!

Dx

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: EM waves; max value of electric field

**Physics Forums | Science Articles, Homework Help, Discussion**