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Solved Problems-8

Problem-8
The x- and y-components of a circularly polarised electromagnetic wave in free space are,
 
Description: 40122.png
 
Find the expression for the displacement current density and draw a neat sketch showing the fields.
Solution
Here, the magnitude of the electric field having circular Polarisation and components as given is,
 
Description: 40113.png
 
The displacement current density is,
 
Description: 40105.png
 
Description: 40098.png
 
The electric field is plotted in the z = 0 plane for different values of ω t as shown in the figure.
 
 
Description: 40089.png
 
Electric field in z = 0 plane with three conditions: (a) ωt = 0 (b) Description: 40081.png (c) Description: 40072.png
 





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