At one instant, the electric and magnetic fields at one point of an electromagnetic wave are E = (230 +350 - 60k) V/m and B = (7.12 - 7.5j + ak) Bo. Submit ✓ Correct Part E Previous Answers Find the z-component of the Poynting vector. Express your answer to two significant figures and include the appropriate units. ► View Available Hint(s) S₂ = Submit μA 230 W m Previous Answers Request Answer ? X Incorrect; Try Again; 4 attempts remaining

At one instant, the electric and magnetic fields at one point of an electromagnetic wave are E = (230 +350 - 60k) V/m and B = (7.12 - 7.5j + ak) Bo. Submit ✓ Correct Part E Previous Answers Find the z-component of the Poynting vector. Express your answer to two significant figures and include the appropriate units. ► View Available Hint(s) S₂ = Submit μA 230 W m Previous Answers Request Answer ? X Incorrect; Try Again; 4 attempts remaining

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 58P: The magnetic field of a plane electromagnetic wave moving along the z axis is given by B...

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The magnetic field of a plane electromagnetic wave moving along the z axis is given by B =B0(coskz+t) j , where B0=5.001010 and k=3.10102m-1 . (a) Write an expression for the electric field associated with the wave. (b) What are the frequency and the wavelength of the wave? (C) What is its average Poynting vector?
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