True/False Indicate whether the statement is true or false. 1. The voltages in digital electronics are continuously variable. False 2. A digital system with 4 inputs can have any input combination represented by a hexadecimal numeral. True 3. Frequency is the number of times that a periodic waveform repeats per second. True 4. The period of a waveform can be found by 1/frequency. True 5. The falling edge of a signal is the transition from a HIGH to a LOW. True 6. The
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Power electronics Mid-1 Objective exam 2011 1.When UJT is used for triggering an SCR‚ the wave shape of the voltage obtained from UJT firing circuit is a a) Sine wave (b) saw tooth wave (c)trapezoidal wave (d) Square wave 2. In a thyristor circuit‚ the angle of conduction can be changed by changing (a) anode Voltage (b) Anode Current (c) Forward Current rating (d)gate Current 3. Freewheeling diodes are mainly used for (a) Better utilization factor (b) di/dt protection
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2012 14th International Conference on Modelling and Simulation Path Loss Effect on Energy Consumption in a WSN ∗ Krishna Doddapaneni‚∗ Enver Ever‚∗ Orhan Gemikonakli‚† Ivano Malavolta‚∗ Leonardo Mostarda‚† Henry Muccini Communications Department‚ School of Engineering & Information Sciences‚ Middlesex University‚ UK Email:{k.doddapaneni‚ e.ever‚ o.gemikonakli‚ l.mostarda}@mdx.ac.uk † Dipartimento Di Informatica De L’Aquila Via Vetoio L’Aquila 67100‚ Italy Email:{ivano.malavolta‚henry.muccini}@univaq
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The various technologies available so far for wireless transmission of electricity and the use of Wireless System of Energy Transmission are discussed. This Electricity through Wireless Transmission ECE-CSIT Seminar Idea concentrated on Tesla Theory‚ microwave power transmission (MPT) called Solar power satellite‚ and highly efficient fiber lasers for wireless power transmission. Especially the distribution and transmission losses are the main concern of this present power technology. This power
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Microcontroller Based Home Security A PROJECT REPORT ON “MICROCONTROLLER BASED HOME SECURITY SYSTEM” ABSTRACT Engineering is not only a theoretical study but it is a implementation of all we study for creating something new and making things more easy and useful through practical study. It is an art which can be gained with systematic study‚ observation and practice. In the college curriculum we usually get the theoretical knowledge of industries‚ and a little bit of implementation knowledge
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BASIC DIODE ELECTRONICS INTRODUCTION TO DIODES The p-n Junction The p-n junction is a homojunction between a p-type and an n-type semiconductor. It acts as a diode‚ which can serve in electronics as a rectifier‚ logic gate‚ voltage regulator (Zener diode)‚ switching or tuner (varactor diode); and in optoelectronics as a light-emitting diode (LED)‚ laser diode‚ photodetector‚ or solar cell. In a relatively simplified view of semiconductor materials‚ we can envision a semiconductor as having two
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____________________________________________________________________________________________________________________ Alternating Current and Direct Current Generator Pedro Portela‚ João Sepúlveda‚ João Sena Esteves Department of Industrial Electronic University of Minho‚ Campus of Azurém‚ 4800-058 Guimarães‚ Portugal delfimpedrosa@gmail.com‚ sena@dei.uminho.pt Abstract. Spinning a wire loop within a uniform magnetic field in a convenient fashion induces a voltage between the loop terminals
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Higher Colleges of Technology Sharjah Colleges Engineering Technology Department Course Name | Telecommunication II | Course Code | EELX N307 | Project Title | Project 4:ATM | Due Date | 9/5/2013 | Max Marks | 10% | Date Submitted | | % of final grade | | Section | | Student Name(s) | | Student ID(s) | | Learning Outcomes: | LO2 | Declaration: Individual 1. No part of this assignment has been copied from another source‚ (not from another group or student‚ an internet
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Augat Electronics Inc. - A Case Analysis 1. Critical Issues Canadian market for Cable TV connectors is expected to grow substantially in the coming years. Given the current product quality and the maturity in Value Added Services provided by the Cable TV companies‚ the basis for purchasing decisions seems to be changing. Given the current market share that Augat has and situation‚ it will be of at most importance to penetrate one or more of the multiple service operators (MSOs) that dominate the
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What’s the difference between resistance and resistivity? Resistance is the obstruction offered to the flow of current by a conductor. Resistivity is the obstruction offered to the flow of current by UNIT AREA OF the conductor. So basically‚ resistance is the property of the object (say a copper wire)‚ whereas resistivity is the property of the substance (copper). And so resistance depends upon the properties of the object. Whereas resistivity depends upon the properties of the metal.
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