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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relative there through mobile phones. It has been observed that students bringing electronic gadgets to school are distracted from their studies. Intrapersonal reaction and communication are missing because studies are immersed in texting and gaming. There is a need to conduct a study of this condition because it has been proven by the result of Annual National Test of the DepEd that students with the most electronic gadgets in the cities and towns have lower result in these tests compared to rural
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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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Kristi Malone The Electronic Era was responsible for the advancement of technology. In my opinion‚ the biggest forms of technology that came were cell phones and personal computers. The invention of cell phones made it possible to communicate with others while not around a landline. It was also now possible to call for help if an emergency arose. The invention of personal computers came with the invention of the internet and made it possible to research a topic of interest without spending hours
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TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS Vol. 11‚ No. 3‚ pp. 93-105‚ June 25‚ 2010 Invited Paper pISSN: 1229-7607 eISSN: 2092-7592 DOI: 10.4313/TEEM.2010.11.3.093 Challenges for Nanoscale MOSFETs and Emerging Nanoelectronics Yong-Bin Kim Department of Electrical and Computer Engineering‚ Northeastern University‚ Boston‚ MA 02115‚ USA Received April 26‚ 2010; Accepted May 3‚ 2010 Complementary metal-oxide-semiconductor (CMOS) technology scaling has been a main key for continuous progress
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Research Project 1 Takem’s Appliances and Electronics‚ LLC (Takem’s)‚ owned and operated by Tommy Takem (Takem)‚ and in the business of selling appliances and electronics to consumer clients in the Appalachian regions of Virginia‚ Kentucky‚ Tennessee‚ and West Virginia‚ recently added a door-to-door (DTD) sales division. Upon the visit of Mrs. Sally Walker (Walker)‚ a team member closed the sale of one new laptop computer. Walker signed three documents including a bill of sale‚ a security agreement
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make it disconnect from legitimate users. A DDOS is very difficult to shut down and defend because it comes from many computers around the world at once. According to Arbor Network analysis‚ DDOS is a global threat that happens on average of 2934 cases per day worldwide and it is now increasing in attack size‚ speed and complexity. In further research‚ they said that proportion of attacks that exceed 10 Gbps had increased 41.6% compared with year by 2012. Next‚ the duration to cause system down and
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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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PETRIE ELECTRONICS Chapter 2 Case Questions: 1. How do information systems projects get started in organizations? Information System projects start with a request which describes problems or desired changes in an information system or a business process. The request might propose enhancements for an existing system‚ the correction of problems‚ the replacement of an older system‚ or the development of an entirely new information system that is needed to support a company’s current and future
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slacking grip of the government and the introduction of satellite channels have helped towards promoting the free media environment in the country. History of media in India Media industry of the country is very diverse in nature. Both the print and electronic media enjoy great penetration in India. With improved infrastructure and affordability of computers the on-line media too is catching up fast. Hence‚ India presents great scope for E&M industry development. However‚ the development of media
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