Batteries‚ Resistance and Current “Battery-Resistor”: Check “show battery” and “show cores”‚ watch what happens‚ adjust some variables 1. Why do electrons (blue dots) move? Draw a diagram of the battery‚ label the flow of electrons. The flow of current (+) is opposite; draw this and note if toward or away from + terminal of the battery. The blue dots indicating the electrons move because there is a voltage across the battery in which the electrons flow away from the positive terminal
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Antimicrobial Resistance: Public Health Issue and Role of Nurses in Prevention Antimicrobial resistance is a significant global issue with serious implications for human health. The microorganisms that were previously sensitive to antibiotic treatment are now capable of withstanding attacks by antimicrobial medicines. One of the main reasons that cause antimicrobial resistance is the misuse of antibiotics‚ which includes an inappropriate selection of antibiotic type‚ dose‚ route‚ or duration of
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scale divisions which can be read to half a division. Determine resolution of meter in volt. [0.25 V] (c) A Wheatstone bridge is balanced with all the four resistances equal to 1kΩ each. The bridge supply voltage is 100V. Now one of the resistances is changed to 1010Ω. The output voltage is measured by a voltmeter of infinite resistance. Calculate the bridge sensitivity. [25V or 0.025 V/Ω] (d)Each of the following numbers has a uncertainty of one in the last figure. Determine the number of significant
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Resistance in a Conductor: The electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor. Electrical resistance shares some conceptual parallels with the mechanical notion of friction. The SI unit of electrical resistance is the ohm (Ω).An object of uniform cross section has a resistance proportional to its resistivity and length and inversely proportional to its cross-sectional area. All materials show some resistance‚ except
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Antibiotic resistance In recent years a challenge to the effective treatment of an ever-increasing range of infections caused by microbes is antimicrobial resistance (AMR). AMR results in reduced effectiveness of antibiotics‚ making the treatment of patients very difficult and sometimes impossible. The impact on especially susceptible patients is most evident‚ resulting in prolonged illness and increased mortality. The total problem caused by AMR on medical field in general and healthcare sector
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Killer at large: Antibiotic Resistance Remember that teacher who would make students use antibacterials on the way in and out of the classroom? Scientist and medical professionals have now realized that all antibacterials‚ antibiotics and antimicrobials are contributing to a large complication that may make it so no bacteriums can be killed. Since the creation of antibiotics in 1896‚ doctors and medical practitioners have been able to save hundreds of millions of
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societyforscience.org/article/superbugssilenthealthemergency answer the following questions in your own words‚ using complete sentences. 1. What is antibiotic resistance? Why are people worried about it? ntibiotic resistance is the effect of antibiotics on germs that infect our body. Most of the antibiotics have lost their A resistance to fight germs. People are worried about it because if antibiotics won’t work no longer than we could even die from a paper cut. 2. How can antibiotic
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Introduction The resistance of a wire depends on certain factors. Some of these variables are listed below: Length of wire Diameter or thickness of wire Temperature at which wire is kept The material of which wire is made out of. The potential difference or voltage. Humidity Cross sectional area. Voltage across circuit All these factors will have to be kept constant except the diameter of the wire whilst doing the experiment to ensure that the investigation is
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Abstract The spread of antibiotic resistance is a universal threat to both humans and animals for treatment of microbial infections. The antibiotic resistance is generally not preventable but can still be controlled. Prolonged and repeated use of antibiotic leads to many pathogen becoming resistant to antibiotics. The resistance may be either intrinsic or acquired depending on the condition. Although classically attributed to chromosomal mutations‚ resistance is most commonly associated with extra-chromosomal
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ELECTRICITY HOTS Questions for Practice 1. Name a substance whose resistance almost remains unchanged by increase of temperature. 2. Name two special characteristics of heater coil. 3. A wire of resistance 4 ohms is bent to form a circle. What is the resistance between two diametrically opposite ends? 4. How does the resistance of a conductor change if its temperature is increased? 5. A current of 4A flows in a wire of resistance 60 ohms. Calculate electrical energy consumed in 2 minutes. 6. V-I
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