(adsbygoogle = window.adsbygoogle || []).push({}); 1. The maximum electric field strength in air is 3.0 MV/m. Stronger electric fields ionize the air and create a spark. What is the maximum power that can be delivered by a 1.3 cm diameter laser beam propagating through air?

2. I = P/A = c*epsilon_{0}*E^{2}/2

3. Using E = 3*10^{6}for E, I use the above equation to solve for I, obtaining 1.19*10^{10. Multiplying by area, using pi*r2}and r = 0.013m, I obtain 6.34*10^{6}, which is incorrect.

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# Homework Help: Power of a laser

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