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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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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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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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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Out of the darkness of the French defeat and capitulation of 1940 rose one of the greatest mass-resistance movements in history. Thousands of French patriots rose up‚ by themselves and in groups‚ and defied Nazi authority. They formed resistance movements that fought the Nazi occupation of France and the collaboration of the Vichy government. The French resistance was detrimental to the success of the Allies during World War II because they played a key role in the D-Day landings and were able to
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Jewish Resistance We must first realize that resistance was in no way a survival strategy. Yet‚ even when it seemed obvious that death was near inevitable‚ why did they not put up a fight? This argument is still puzzling to many holocaust historians‚ yet the arguments of Raul Hilberg and Yehuda Bauer offer insight to possible reasons why they did not fight and that resistance was more widespread than most people think. First of all we will look at Raul Hilberg’s “Two Thousand Years
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The resistance of a wire Planning:- Introduction: To investigate the resistance of a wire at different lengths to see whether or not a longer wire has a larger resistance than a shorter wire. Apparatus: Wire Voltmeter Ammeter Battery 2 crocodile clips Metre rule Variable resistor Diagram: Variables: Length Thickness Resistance Material The material and diameter of the wire needs to be kept constant to keep the test fair as we are investigating resistance. The
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