Analysis of two and four-lead resistance measurements Johnny Greavu University of Minnesota-Twin Cities September 29‚ 2014 Introduction We measured the resistance per foot of a wire using setups of both two and four test leads in tandem with a digital voltmeter (DVM) and compared their accuracy. While resistance can be determined by measuring voltage and current separately‚ it can also be measured more simply and directly using the resistance measuring feature available to some digital voltmeters
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type B pencil had the highest resistance and type 11B pencil had the lowest resistance. B type pencils are darker than H type pencils. For B type pencils‚ the pencils get softer as its number increases. For example‚ a 6B pencil is softer than a 4B pencil. It was evident from the data that softer pencils have a lower resistance. For instance‚ the average resistance for a one centimeter line for a B type pencil was 0.275 MΩ‚ but for a 11B type pencil the average resistance decreased to 0.084 MΩ. In addition
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Informative Speech Outline Template Topic: The Antibiotic Resistance Crisis General purpose: To inform others of the current antibiotic resistance crisis Specific purpose: To inform others about how overly prescribed antibiotics are causing an increase in resistance and what can be done to slow down the process Introduction a. People get sick every single day. Of course there are those that are more susceptible to illness‚ like children and our elderly population. What almost everyone has in common
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Physics GCSE coursework: Resistance of wire Aim: To investigate if the length of wire affects its resistance. Prediction (Hypothesis): I predict that the longer the wire the higher the resistance‚ and the shorter the wire the lower the resistance. Knowledge: Resistance is that property of electric components that turn electric energy into heat in opposing the passing of an electric current.It can be beneficial‚ as in electric heaters‚ or a pest‚ as in light bulbs‚ where the heat
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Antibiotic test‚ such as the Kirby Bauer Method‚ are used to determine susceptibility to various antimicrobials. Why are they not used to determine resistance? a. They grow a resistance to antibiotics and antimicrobials. Kirby Bauer is used to determine diffusion of a disk‚ to measure the effectiveness of antibiotics towards pathogenic microbes. 4. Compare and contrast the following terms: antiseptic‚ disinfectant
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intervention on antibiotic resistance is not done. She describes that in the past‚ before penicillin was discovered by Alexander Fleming‚ infections were the primary cause of death and most people did not live past the age of forty. Once antibiotics were discovered‚ they functioned as a panacea‚ saving people from injuries and infections and allowed them to live longer lives. However‚ the seventy years of freely using antibiotics has caused bacteria to develop resistance via natural selection and
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How does the length of a wire affect its resistance? Introduction: This first report in Physics will show the investigation of how the length of a wire affects its resistance. For starters I will go through the main definitions‚ to get a better knowledge of what is going to happen. However I will plan it out first to show each step of how I started‚ and then go into detail about the results and what the investigation on a whole has showed me. I shall then conclude my findings and present them with
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How Does The Diameter Of Wire Affect The Resistance In A Circuit? Introduction: Some metals such as copper‚ silver and gold are very good conductors of electricity. This is because they all have only one electron on the outer shell. This means that they need only a tiny amount of energy in order to allow the electron to move. Non-metals‚ however‚ do not have free electrons‚ so even non-metals that only have one electron on their outer shell can still hold onto them tightly. Aim Of The Investigation:
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1). Development of botanicals to combat antibiotic resistance. Abstracts: The findings of antibiotics in the earlier in time century lead to the process of reducing mortality and morbidity due to diseases capable of causing infection but their unsuitable and not able to reason well has resulted in an instance of emerging of resistant microbial populations. Keywords: Antibiotic resistance; Botanicals; Synergism; Immunomodulation; Bioenhancers According to Gupta‚ P. D.‚ & Birdi‚ T. J. (2017)‚ Crude
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An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
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