------------------------------------------------- Refractive index From Wikipedia‚ the free encyclopedia In optics the refractive index (or index of refraction) n of a substance (optical medium) is a dimensionless number that describes how light‚ or any other radiation‚ propagates through that medium. Its most elementary occurrence (and historically the first one) is in Snell’s law of refraction‚ n1sinθ1= n2sinθ2‚ where θ1 and θ2 are the angles of incidence of a ray crossing the interface between
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ICLICKER Solid state components are less likely to fail because they: A. are driven by precise sets of software instructions. B. have the capability to both enable and inhibit the flow of electricity. C. have no moving parts. D. are composed of germanium instead of silicon. E. contain storage that retains data even when powered down. DSC340 YIN 9 ICLICKER Which of the following is solid state? A. an iPod shuffle B. a TiVo DVR C. a typical laptop PC D. All of them E. None of them DSC340 YIN 10
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Operations Analysis: Motorola Mary Pugh BSA 523 – Operations Management Averett University Dr. Bruton November 8‚ 2013 Motorola Solutions‚ Inc. is an American data communications and telecommunications equipment provider that succeeded Motorola Inc. following the spin-off of the mobile phones division into Motorola mobility in 2011. (motorola.com) Motorola Inc. was an American multi-national telecommunications company based in Schaumburg‚ Illinois. The company was founded
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Current‚ Voltage and Power * Electricity is the flow of electric charge. We can describe the flow of electric charge in several ways. These include the quantities Current‚ Voltage and Power. Current * Current (I) is the rate of flow of Charge Carriers‚ such as electrons. Current is usually thought of as moving in the direction of positive charge‚ so from the positive power supply to the negative. However‚ since in metals it is electrons that carry electric charge‚ the actually flow is opposite
Free Atom Electron Chemical bond
THE PERIODIC TABLE HISTORICAL BACKGROUND The idea that all things are elements or combinations of elements can be found in the writings of the ancient Greeks and other early peoples. Although this idea may seem simple‚ it is very difficult to decide if a substance is indeed an element or a compound. There were twelve chemical elements discovered in ancient times‚ but it was not known that they were elements. Another 76 elements were discovered between 1557 and 1925. Many mistakes were made in
Free Periodic table Chemical element Atomic number
A solar cell (also called photovoltaic cell or photoelectric cell) is a solid state electrical device that converts the energy of light directly into electricity by the photovoltaic effect. Assemblies of cells used to make solar modules which are used to capture energy from sunlight‚ are known as solar panels. The energy generated from these solar modules‚ referred to as solar power‚ is an example of solar energy. Photovoltaics is the field of technology and research related to the practical
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C A L I F O R N I A S TA N DA R D S T E S T Chemistry Released Test Questions Question Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Correct Answer A A C A B D A A A B A A C D A A C D B D D C A C A C D A D A C A B D A Standard CHIE1.A CHIE1.A CHIE1.C CHIE1.D CHIE1.E CHIE1.F CHIE1.F CHIE1.G CHIE1.K CH1.A CH1.A CH1.A CH1.B CH1.B CH1.C CH1.C CH1
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------------------------------------------------- Automatic Bidirectional Visitor Counter Project Report ------------------------------------------------- Automatic Bidirectional Visitor Counter Project Report Table of Contents Executive Summary2 Introduction2 Working2 Components Used3 89C513 Light emitting diodes (LEDs) 4 Infrared Sensors 4 Seven Segment Display 6 Transistors 7 Circuitry7 Applications8 Future Development8 Conclusion8 1. Executive Summary
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Fibre Optics Technology over the past century has advanced greatly. Fibre optics however is being utilized since more than a hundred years. Optical fibre is a model that has evolved greatly over time. From guided transmission lights experiments to lasers and light emitting diodes (LED)‚ and to dense wavelength-division multiplexing (DWDM)‚ the area under which optical fibre can be used has expanded. One of the modern and commonly used applications
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3001 MULTIPLE CHOICE QUESTIONS in ELECTRONICS ENGINEERING Santos S. Cuervo‚ ECE Susana A. Tan‚ ECE Encoded by: ASI‚ Rannilo Jr. L. DAMIAN‚ Sarah Joy V. DIAZ‚ Chona O. GLORIA‚ Mac Arco J. TAJANLANGIT‚ Alvin L. TORIO‚ Ayra Kate E. UMBAO‚ Raissa Grace C. PART 1: COMPILED QUESTIONS PER TOPIC CHAPTER 1: ELECTRICITY AND MAGNETISM FUNDAMENTALS 1. Who discovered the relationship between magnetism and electricity that serves as the foundation for the theory of electromagnetism
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