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Q. 42

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 903

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Short Answer

At one instant, the electric and magnetic fields at one point of an electromagnetic wave are and .

a. What are the values of and ?

b. What is the Poynting vector at this time and position?

(a) The values of and

(b) The Poynting vector at time and position is

See the step by step solution

Step by Step Solution

Step1: Find  (part a)

By, :

Step2: Find  (part a)

Step3: Find the Poynting vector

The Poynting vector is:

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