Introduction Coaxial cable: is an electrical cable consisting of a round conducting wire‚ surrounded by an insulating spacer‚ surrounded by a cylindrical conducting sheath‚ usually surrounded by a final insulating layer. It is used as a high-frequency transmission line to carry a high-frequency or broadband signal. Sometimes DC power (called bias) is added to the signal to supply the equipment at the other end‚ as in direct broadcast satellite receivers. Because the electromagnetic field carrying
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Electrical Cable Cross section is just a two-dimensional view of a slice through an object. An often asked question: How can you convert the diameter of a round wire d to the circle cross section surface or the cross-section area A (slice plane) to the cable diameter d? Resistance varies inversely with the cross-sectional area of a wire. | ------------------------------------------------- Top of Form | Wire diameter d | unit | | | Cross-sectional area A | unit2 | | |
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Experiment: Date of Report: Aim In this experiment‚ we aim to: (a) determine the refractive index n of a polymer slab from its constructive and destructive thin-film microwave interference; and (b) determine the lattice constant a of an array of thin copper rods from its Bragg diffraction of the incident microwave. Introduction Thin Film Interference When plane electromagnetic wave of wavelength λ is incident on a dielectric surface‚ part of the electromagnetic wave is reflected‚ and part of
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Sof-Optics‚ Inc. 1. See attached slide on final page 2. There are a number of problems facing Sof-Optics (detailed below). The most severe problems are in the CSR department: a. Major problems: i. Going forward‚ Sof-Optics will be under pressure to lower prices since B&L (the industry leader) just slashed prices by 25%. This is especially troubling‚ given the point that follows… ii. Loss of customers (and sales) due to long customer service wait times or lack of phone lines available (i
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Data Collection - Ace Cable RES 351 Data Collection - Ace Cable As stated in the week two‚ Ace Cable is an established company that offers cable television‚ telephone and internet services to its customers. These services are available to customers across the United States and they have been in business since 2000. In recent years‚ the competition has grown and Ace Cable is experiencing a decrease in customer enrollments. Customers now have multiple options to consider before enrolling
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Descartes Optics Descartes’s theories of light and vision were central components of his natural philosophy‚ closely linked to his cosmology‚ physics‚ theory of matter‚ and theory of perception. Descartes replaced traditional explanations of natural phenomena with explanations hidden under terms of matter and motion. By eliminating these theories‚ Descartes needed to formulate new explanations of the qualities of bodies and our perception of them. In other words Descartes goes on to call into
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Jelly Optics Investigatory Project in Physics Chapter 1 The Problem and its Background Introduction When light hits a boundary between two substances‚ it often bends. This is called refraction. Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. Refraction is responsible for image formation by lenses
Free Light Optics
Chapter 1 Introduction 1.1 History of Free Space Optics Even though fibre-optic communications gained worldwide acceptance in the telecommunication industry‚ FSO communications is still considered relatively new. But optical communication‚ in various forms‚ has been used for thousands of years. The Ancient Greeks polished their shields to send signals during battle. In the modern era‚ semaphores and wireless solar telegraphs called heliographs were developed‚ using coded signals to communicate
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Cable Industry Regulation NETW 586 Telecom Law and Regulation Due Date: 25th August 2013. I. Abstract Cable industry has undergone a lot of evolution since the very first time it came into existence. First the paper will discuss cable television‚ telecommunication act 1934 and history of cable industry. The origin and importance of both regulation and deregulation of cable industry will be discussed. The various economic impacts; telecommunication‚ broadband
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cable modem: ABSTRACT Cable modems are devices that allow high-speed access to information at a distant server may it be Internet server or video on demand server‚ via a cable television network. While similar to the traditional (analog) dialup modems‚ a cable modem is significantly more powerful‚ capable of delivering data approximately 500 times faster. During the early to mid - 1990s‚ the two-way interactive communication capability of the existing cable network infrastructure was realized
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