Find Total Energy Received by EM Wave | Suggestions

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SUMMARY

The total energy received by an electromagnetic (EM) wave can be calculated using the formula E = Intensity x Area x Time. The Poynting vector is essential for understanding the direction and magnitude of power flow in EM waves. For those less concerned with direction, the scalar formulation provides a straightforward approach to energy calculation. It is crucial to determine the intensity of the wave to apply this formula effectively.

PREREQUISITES
  • Understanding of electromagnetic wave properties
  • Familiarity with the Poynting vector concept
  • Knowledge of intensity calculations in physics
  • Basic grasp of area and time measurements in energy calculations
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  • Research how to calculate the intensity of electromagnetic waves
  • Explore the application of the Poynting vector in different scenarios
  • Study energy transfer in electromagnetic fields
  • Investigate scalar versus vector formulations in physics
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Students and professionals in physics, electrical engineering, and anyone interested in understanding energy transfer in electromagnetic waves.

wrkinhard
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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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