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Introductory Physics Homework Help
Calculating EM Wave Intensity
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[QUOTE="RRiley99, post: 4344134, member: 461911"] Howdy everyone. [b]1. Ok, so we have and electromagnetic wave propagating through a vacuum. We know wavelength, and the magnitudes of B in the x and y directions. Also, B=[Bx(i)+By(j)]cos(kz+ωt). That's all the prereq stuff. [/b] [b]2. So Intensity is: <P>/A & (1/2)Bmax^2/Zo I'm def feeling the second equation is the most useful here! But this equation yields an incorrect answer. Are these the only two equations for Intensity? [/b] [b]3. I've tried taking the magnitude of the B and plugging into the second eq. This didn't work. [/b] Thanks, Robert [/QUOTE]
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Calculating EM Wave Intensity
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