William Stanley‚ who designed the first commercial model‚ introduced the term "transformer" in 1885. What is a transformer? Transformers are electrical devices that change the value of an alternating voltage.They do this by applying the principle of magnetic induction between coils to convert voltage and/or current levels. Transformers are mainly made up of two coils wrapped around the iron core. The first coil is called the primary coil and the second coil is called the secondary coil. What principle/law
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Console is the section of the imaging system that most Technologists are familiar with. It is the Primary side of the main circuit and it includes the incoming current‚ the exposure switch‚ the autotransformer and the primary winding for the step up transformer. Through the Control Console‚ the tech is able to control the x-ray tube current and the voltage so that the useful x-ray beam that reaches the patient has the right quantity‚ or the intensity of the beam and is expressed in mR/mAs‚ and the
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INTRODUCTION A full wave rectifier is a device which is used to rectify all the alternating current components in an alternating supply and make it purely a direct current. The two alternating halves of an alternation current are rectified in a full wave rectifier which is an advantage over a half wave rectifier. Most of electronic devices cannot withstand very high voltage or alternating current due to its intense high power. The use of batteries in all devices is not practical as their replacement
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including the tesla coil. Nikola Tesla was born in July of 1856‚ in what is now Croatia. He came to the United States in 1884 and briefly worked with Thomas Edison before the two parted ways. He sold several patent rights‚ including those to his alternating-current machinery‚ to George Westinghouse. Nikola Tesla made dozens of breakthroughs in the production‚ transmission‚ and application of electric power. Nikola Tesla came to the United States in 1884 and briefly worked with Thomas Edison before they
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watching television this is the main form of communication. Tesla’s contribution in the development of these forms of communication has greatly impacted lives every day. For instance‚ “Tesla coils are a type of electrical circuit used to generate low-current‚ high voltage electricity‚ which can be used in wireless transmissions” (“Top 11”). Without the invention of the Tesla coil‚ electronics that are able to wirelessly transmit signals would be unknown. This means the form of communicating with others
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magnetic induction. Other methods under consideration include electromagnetic radiation in the form of microwaves or lasers. Energy transfer and efficiency The general principle is that if a given oscillating amount of energy (for example alternating current from a wall outlet) is placed into a primary coil which is capacitively loaded‚ the coil will ’ring’‚ and form an oscillating magnetic field. The energy will transfer back and forth between the magnetic field in the inductor and the electric
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EFFECTIVENESS OF IMPROVISED STYRO-CUTTER Polystyrene (PS) is a synthetic aromatic polymer made from the monomer styrene‚ a liquid petrochemical. (Retrieved: April 12‚ 2013 http://en.wikipedia.org/wiki/Polystyrene) Expanded polystyrene beads makes up a Styrofoam. Styrofoam is used almost everywhere: it is used as housings of appliances such as televisions‚ computers and refrigerators. It is also utilized as drinking cup especially for hot beverages because of its insulating properties. As a student
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analysis with respect to the actual practical work involved in the project. The system is designed in such a way that it utilizes a 24V accumulator to power an inverter circuit whose frequency is set at 50Hz to produce alternating current. The square wave current from the inverter is strengthened (Amplified) and fed into a 24/240V transformer‚ which steps-up the voltage to the desired level. A control circuit is incorporated to ensure the automation in changing from the public
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relative motion between a magnetic field and a conductor. In a generator‚ mechanical energy is converted into electrical energy while the opposite occurs in an electric motor. The electricity produced by most generators is in the form of alternating current. In general AC generators‚ motors and other electrical equipment are simpler‚ cheaper and more reliable than their DC counterparts. AC electricity can be easily transformed into higher or lower voltages making it more versatile than DC electricity
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C 12. D 13. A‚D 14. C 15. A‚B 16. B 17. B 18. A‚D 19. C 20. B‚C‚D Key Terms: Electrical circuit - an electrical device that provides a path for electrical current to flow. Frequency - The cycles per second of alternating current‚ measured in Hertz. Amplitude - The maximum difference of an alternating electric current or potential from the average value. Phase - Is a position of a point in time on a waveform cycle. Bit time - the time it takes for one bit to be ejected from a Network
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