Find Total Energy Received by EM Wave | Suggestions

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To find the total energy received by an electromagnetic (EM) wave over a period, the Poynting vector is essential as it indicates the magnitude and direction of power flow. For a simpler approach, energy can be calculated using the formula E = Intensity x Area x Time, where intensity needs to be determined separately. The discussion emphasizes understanding the flow of EM energy rather than just the energy itself. Clarifying these concepts can help in accurately calculating the total energy received. Proper application of these principles is crucial for effective analysis of EM waves.
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How do you find the total energy received by an EM wave in a period of time? I tried U=c * Area * time *power..but this doesn't seem to be right...any suggestions?
 
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I'm not sure what you mean by an EM wave receiving energy but I assume you mean "flow of EM energy" or something to that effect. I hope I'm Poynting you in the right direction. :)
 
Tide is right, the Poynting vector will tell you the magnitude and direction of power flow along the wave.

If you are not particularly fussed on the direction of power flow, then there is a simple scalar formulation as well;

E = Intensity x Area x Time

I'll leave it up to you to find out how to calculate the intensity.

Claude.
 

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