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Exam 3 Review - Exam 3 • 1 If a bar magnet is broken into...

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1 Exam 3 Magnets Magnetic poles, magnetic forces, monopoles, ferromagnetic materials, magnetic domains, compasses, electric magnets Power Distribution Alternating current, magnetic induction, Lenz's law, transformers, electrical safety Radio Tank circuits, capacitors, inductors, EM waves, AM, FM, Microwave Ovens c = O v, how work, screen in window, why water gets hot, metal in oven… Sunlight Why sky blue, refraction, index of refraction, reflection, dispersion, how rainbow work, interference, polarization, energy of EM wave ± frequency Discharge Lights Why do you see color, color addition, color subtraction, how florescent lamp works, radiative transitions Lasers/LEDS Spontaneous emission, stimulated emission, coherent vs. incoherent, population inversion, how laser works,… How LEDS work Cameras Optics of lenses, converging and diverging lenses, real and virtual images, focus, focal length, f-numbers, lens equation implications, vision and vision corrections 1. If a bar magnet is broken into two pieces, each piece A) has only one magnetic pole. B) has an electric charge. C) has two magnetic poles.
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