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Intensity of Electromagnetic Radiation

Last modified by

on

Jul 5, 2022, 8:25:21 PM

Created by

on

Jul 2, 2014, 3:04:01 PM

$I = P_s/(4pir^2)$

$"Power"$

$"Distance"$

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19f95df3-01fa-11e4-b7aa-bc764e2038f2

The intensity S of an electromagnetic wave refers to the power per area the wave imparts if it is absorbed by a surface. The intensity is determined by the strength of the magnetic and electric fields

The equation is expressed as

$I=P_s/(4pir^2)$

where

$P_s$ is the power of source
$4pir^2$ is the surface area of the sphere

This equation, Intensity of Electromagnetic Radiation, references 1 page

Equations and Data Items

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$pi$ by MichaelBartmess

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