CSIR NET
Ashok kumar nehra Asked a Question
February 2, 2021 12:19 pmpts 30 pts
  • CSIR NET
  • Physical Sciences

5 for an electromagnetic wave in free space, the directions of e, b fields and the poynting vector s, are related by sxb b s =0 (2) (1) exb |sxb b exs b exs - e

5 For an electromagnetic wave in free space, the directions of E, B fields and the Poynting vector S, are related by SxB B S =0 (2) (1) ExB |SxB B ExS B ExS - E Ex S B (4) ExS E
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  • Ashok kumar nehra
    Thanks for guidance but last step in option 2nd and 3rd specially dinominator is not clear
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  • Lekhika thankyou
    just use the defination of poynting vector. see the attachment.
    • cropped887795416389527735.jpg
    • cropped2189533129177629643.jpg
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