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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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    Ion Exchange Chromatography Discussion: The first exercise preformed in this lab was ion exchange chromatography. The purpose of this experiment is to separate molecules based on their differences in charge. Since it is based on charge the amino acids in the cation exchange column‚ if negatively charged‚ flow through the column first because they don’t want to bind to the sodium ions. The positively charged ions will elute last at the highest ph because they bind to the negatively charged beads

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    Electricity’s impact on Society Electricity has had multiple impacts on society both positve and negative. Electricity has had an effect on everyone in the world‚ even though some people have no understanding or have no use for electricity. For example‚ there are tribes in the Amazon who have never seen a lightbulb who have never beared witness too the heracy of Big brother and yet they are still effected by electricity. The chainsaws which cut down their beloved forests are designed by a man called

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    Conductor Investigation

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    2009 Conductor Investigation Calvin Chang 8.2 Stage 1: Planning the Experiment Introduction ! By “electric current”‚ I mean by the rate at which electric charges moves through a circuit‚ the electric charges can either be ions or electrons. They are measured in ammeters and the unit that is measured in is ampere which is the number of charges that passes through per second. There are many factors which would affect the electric current‚ like the voltage of the battery‚ the type of wire you are using

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    electrode. External mechanical actuation is used to move the droplet in such a way as to force a decrease of its overlap with the dielectric-film-coated electrode. This results in the decrease of the total charge that can be maintained at the droplet liquid – solid interface. The excessive electrical charge then flows back through the electrical circuit that connects the droplet and the electrode‚ generating electrical current that can be used to power the external load. Figure 2. Schematics of the electric

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    Simply, Me

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    INTRODUCTION In 1791 Luigi Galvani discovered electrical activity in the nerves of the frogs that he was dissecting. He thought that electricity was of animal origin and could be found only in living tissues. A few years later‚ in 1800 Alessandro Volta discovered that electricity could be produced through inorganic means. In fact‚ by using small sheets of copper and zinc and cloth spacers soaked in an acid solution‚ he built a battery - the first apparatus capable of producing electricity. Naysayers

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    dasd

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    attract when held some distance apart‚ charges can either repel or attract when held some distance apart. An alternative to describing this action-at-a-distance affect is to simply suggest that there is something rather strange about the space surrounding a charged object. Any other charged object that is in that space feels the affect of the charge. A charged object creates an electric field - an alteration of the space in the region that surrounds it. Other charges in that field would feel the unusual

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    ON THE ELECTRODYNAMICS OF MOVING BODIES By A. EINSTEIN June 30‚ 1905 It is known that Maxwell’s electrodynamics—as usually understood at the present time—when applied to moving bodies‚ leads to asymmetries which do not appear to be inherent in the phenomena. Take‚ for example‚ the reciprocal electrodynamic action of a magnet and a conductor. The observable phenomenon here depends only on the relative motion of the conductor and the magnet‚ whereas the customary view draws a sharp distinction

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    insulating materials‚ the outer electrons are not so free to move. All metals are electrically conductive. Dynamic electricity‚ or electric current‚ is the uniform motion of electrons through a conductor. Static electricity is an unmoving‚ accumulated charge formed by either an excess or deficiency of electrons in an object. For electrons to flow continuously (indefinitely) through a conductor‚ there must be a complete‚ unbroken path for them to move both into and out of that conductor. http://www

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    neutral i.e. they have the same amounts of negative and positive charge inside them. The electrons carry negative charge and the protons carry positive charge. The basic unit of charge (called the elementary charge)‚ is the amount of charge carried by one electron. The charge on a single electron is qe = 1‚ 6x10−19 C. All other charges in the universe consist of an integer multiple of this charge (i.e. Q = nqe). This is known as charge quantisation. All the matter and materials on earth are made

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