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# Yoga wahyu s 09330084 electromagnetic wave

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### Yoga wahyu s 09330084 electromagnetic wave

1. 1. By : Yoga Wahyu Sasongko
2. 2. Electromagnetic waves are waves thatresult from changes in the magnetic fieldand electric field respectively, where thevibration direction of the electric fieldvector and the magnetic field vectorperpendicular to each other
3. 3. Maxwell theory "If changes in the magnetic field can generate an electric field, the opposite changes in electric field can produce magnetic fields" changes in magnetic flux Changes in the electric field
4. 4. characteristics of the wave elecromagnetic Changes in Electric and Magnetic Field occurs at the same time electromagnetic waves do not have a cargo E and B directions perpendicular to each other and both perpendicular to the direction of wave propagation Can experience reflection, refraction, interference, diffraction, polarization
5. 5. The propagation velocity of electromagnetic wave The rate of electromagnetic wave with the rate of the light in the vacum. However, the length of wave ang frequency of electromagnetic wave not the same as the light. The relationship betwen the wave and the frequance wave is as the following c=f C = The propagation velocity of electromagnetic wave (3 x 108 m/s)  = wave length (m) f = frequence (Hz)
6. 6. Exemple :A radio wave is emitted at a frequency of 15 x104 Hz .Determine the wavelength of the emitted!Answer : c  f . c  f 3 x108 m / s  15 x104 Hz   2000m
7. 7. _THANK YOU VERY MUCH