Electricity and electromagnetism: Webquest BBC Electricity and Magnetism http://www.bbc.co.uk/schools/ks3bitesize/science/energy_electricity_forces/magnets_electric_effects/activity.shtml Questions: 1. Why is an iron core needed in an electromagnet? 2. How are electromagnets different to either temporary or permanent magnets? 3. What happens when you add more coils to the wire in an electromagnet? What else can you do to increase the magnetic field of an electromagnet? Electromagnet Simulation
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Wireless Technologies Proposal Steven Cornalino‚ Latonya Davidson‚ Elma Dulay‚ Sharon Horne‚ Christina Strickland BIS/220 Introduction to Computer Application and Systems September 25‚ 2011 Sheeraz Fazal This research is purposed to identify at least two wireless technologies that would be beneficial to implement in the Party Plates organization as a marketing tool and advance business objectives. This research will also include a justification for the decision to implement the aforesaid wireless
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today ’s culture‚ electricity is a vital part of functioning as a society. Simple tasks‚ such as waking up at a designated time or enjoying a piece of music‚ are accomplished currently via electronic means. One only needs to consider the consequences of a relatively short power outage factories close down‚ phones and computers go dead‚ traffic slows to a crawl‚ food spoils in refrigerators to accurately observe how power-dependent our society has become. However‚ electricity is a constantly developing
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April 4th‚ 2006 A Technical Report: Wireless Sensor Networks and How They Work Prepared for Ann Holms University of California Santa Barbara Prepared by Ethan Culler-Mayeno University of California Santa Barbara Abstract Wireless sensor networks are a budding technology with the potential to change the way that we live. This report explains the workings of each network as a system of tiny computers called motes and the parts of the network. Furthermore‚ this report goes on to
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I woke up and the bedroom was hot.I guess the power still hasn’t been fixed yet. It drives me crasy with no heating on a bloody winters day in the middle of December! I slowly slip out of bed still clutching my blanket for some warmth. I climb down the ladder and as soon as me feet touch the ground I quickly jump onto the carpet. The floor is like a sheet of frozen ice. No floor heating either. Great! Well‚ at least something can keep me awake in the morning at quarter to six. I’m just about to
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Cellular Phones Cellular phones or mobile phones are more convenient than the telephone because with a cellular phone you can talk to anyone on the planet from just about anywhere. These days‚ cell phones provide an incredible array of functions‚ and new ones are being added at a breakneck pace. Depending on the cell phone model you can: * Store contact information * Make task or to-do lists * Keep track of appointments and set reminders * Use the built-in calculator for simple math
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Electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well- know effects such as lightning‚ static electricity‚ electro magnetic induction and the flow of electrical current. In addition‚ electricity permits the creation and reception of electromagnetic radiation such as radio waves. Electrical phenomena have been studied since antiquity‚ though advances in the science were not made until the seventeenth and eighteenth
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Atomic Structure & Electricity 1. Draw an atom with an atomic number of 12. Label the protons‚ neutrons‚ and electrons. Use the periodic table to identify which atom you have drawn. 2. How many valence electrons are present in this atom? 2 3. Would this atom prefer to gain or lose electrons? Why? Lose‚ because the octet rule dictates that if there is less than 4 valance electrons‚ they would prefer to leave the atom. 4. Describe the differences between conductors‚ semiconductors
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Hazards of Static Electricity; Lightning Lightning is a massive electrostatic discharge between the electrically charged regions within clouds or between a cloud and the surface of a planet. It is the sudden high-current discharge caused by the atmosphere’s electrical breakdown. Lightning is also one of the most deadly natural phenomena known to man. Lightning is an electric current; thus within a thundercloud up in the sky‚ many small bits of ice (frozen raindrops) collide into each other as
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CHAPTER I THE PROBLEM AND ITS SETTING INTRODUCTION The area of wireless power transmission is very interesting. The technology is in its infancy but the overall benefits from its maturation could be significant to society as a whole. World population is expected to continue to grow exponentially. Five sixths of the world’s population lives in developing nations. Most developing nations such as China‚ India‚ and Pakistan are rapidly improving their standard of living. All of these trends point
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