32. Electromagnetic Waves
Intensity of EM Waves
32. Electromagnetic Waves
Intensity of EM Waves
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A 100 W lightbulb actually emits around only 10 W of light. What is the intensity of the light 1 cm away if the light is emitted perfectly spherically? What is the magnitude of the electric field emitted by the lightbulb? What about the magnetic field?
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