PPT-Electromagnetic Radiation

Conceptual Physics J Beauchemin 2009 Waves a review Most waves are either longitudinal or transverse Sound waves are longitudinal But all electromagnetic. waves . emitted . by . mobile telephones . and wireless . internet routers . on germination . and growth of Broccoli, (Brassica . Oleracea. ). First author: . Ceamburu. . Alexandru. Co-authors: . Geambasu. Session 1: The other side of ICT convergence: EMF exposure and issues. Montevideo, ​Uruguay, 13 March 2014. Electromagnetic Compatibility & EMF exposure: An Integral approach. 1. Outline. EMF Exposure. . E. . = . -. f. . . . Scalar Potential . f . and Electrostatic Field . E. . .  . x . E. = -. ∂. B. /. ∂. t . Faraday’s Law.  x -. . f . = 0 ≠ . -. ∂. B. /. ∂. t . ATS 150. Lecture . 3. Defining Energy is Hard!. “. Energy. is the capacity to perform . work. ”. (but physicists have a special definition for . “. work,. ”. too!). Part of the trouble is that scientists have . . E. . = . -. f. . . . Scalar Potential . f . and Electrostatic Field . E. . .  . x . E. = -. ∂. B. /. ∂. t . Faraday’s Law.  x -. . f . = 0 ≠ . -. ∂. B. /. ∂. t . Electromagnetic Radiation. Electromagnetic waves perpendicular waves combing the electric and magnetic fields. . Electromagnetic waves are produced when an electric charge vibrates or accelerates and can travel through empty space or through matter. . Energy that travels as a wave through space. Wavelength –. λ – distance between corresponding points on adjacent waves. Frequency – f – waves per second. Spectrum. Breakdown of electromagnetic radiation by increasing wavelength. Chapter 9 . Trapped in a Newtonian Universe. Though Newton’s Apple and Calculus are helpful, his theories are only as good as the next round of evidence.. Now we have electromagnetic fields and energy without tiny solid particles.. . What do X­rays, light, microwaves, radio waves, and infrared have in common? . . EM Radiation. Radiation can be described as the movement of energy through space. . There are many different sources of radiation that vary by intensity. . . Intro to Electro Magnetic Waves. (. or electromagnetic radiation). (or EMR). Electro-Magnetic Radiation is an interesting subject in physics in part due to the fact that we interact with EMR (electromagnetic Radiation) or technology that makes use of our understanding of electromagnetic Radiation to enhance our lives. . Light, microwave, x-ray, TV, and cell phone transmission are all kinds of . electromagnetic waves. .. Electromagnetic waves are a group of energy waves that are mostly invisible and can travel through empty space.. March 25. June 18. September 26. December 19. http://video.pbs.org/video/2219781967/. Electromagnetic Waves. Believe it or not, you are being . “. showered. ”. all the time, not by rain but by waves. . Presented By. Dr. . Banashree. . Saikia. Assistant Professor. Department of Geography. JN . College, . Boko. Electro Magnetic Radiation . is one of the important component Remote Sensing . Technique.. The Scottish physicist James Clerk Maxwell (1831–1879) was the first person to truly understand the fundamental nature of light. . He proved in 1865 that an electromagnetic disturbance should propagate in free space with a speed equal to that of light..