(b) What is the intensity and peak electric field of E-M wave inside a microwave oven, whose area of cross-section is A=0.25m x 0.30m and the average E-M wave power is 500-W.
(c) How the electric field in (a) compares with the safety regulation of EPA for microwave oven, which says that leaking of more than 5% of the E-field from the oven is harmful to the human body.© BrainMass Inc. brainmass.com October 10, 2019, 8:00 am ad1c9bdddf
I = P/(4pi r^2) = 1/(4*pi*0.05^2) = 31.83 W m^-2
I = c e0 E^2
=> E = sqrt(I/c e0) = sqrt(31.83 / ...
For a specified microwave oven and a cellular phone, intensity and peak electric fields are estimated and the fields are compared. The intensity and peak electric field of the cellular phone's E-M waves in the brain.