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•7 What is the intensity of a traveling plane electromagnetic wave if B, is 1.0 × 10-4 T?

•7 What is the intensity of a traveling plane electromagnetic wave if B, is 1.0 × 10-4 T?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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sec. 33-5 Energy Transport and the Poynting Vector •7 What is the intensity of a traveling plane electromagnetic wave if B, is 1.0 X 10-4 T? •8 Assume (unrealistically) that a TV station acts as a point source broadcasting isotropically at 1.0 MW. What is the intensity of the transmitted signal reaching Proxima Centauri, the star near- est our solar system, 4.3 ly away? (An alien civilization at that dis- tance might be able to watch X Files.) A light-year (ly) is the dis- tance light travels in one year. •9 ILW Some neodymium-glass lasers can provide 100 TW of power in 1.0 ns pulses at a wavelength of 0.26 µm. How much en- ergy is contained in a single pulse? •10 A plane electromagnetic wave has a maximum electric field
Transcribed Image Text:sec. 33-5 Energy Transport and the Poynting Vector •7 What is the intensity of a traveling plane electromagnetic wave if B, is 1.0 X 10-4 T? •8 Assume (unrealistically) that a TV station acts as a point source broadcasting isotropically at 1.0 MW. What is the intensity of the transmitted signal reaching Proxima Centauri, the star near- est our solar system, 4.3 ly away? (An alien civilization at that dis- tance might be able to watch X Files.) A light-year (ly) is the dis- tance light travels in one year. •9 ILW Some neodymium-glass lasers can provide 100 TW of power in 1.0 ns pulses at a wavelength of 0.26 µm. How much en- ergy is contained in a single pulse? •10 A plane electromagnetic wave has a maximum electric field
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