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What is the reason for such large variations in resistivity of different materials?
The resistivity of a material depends on its atomic and molecular structure, such as the arrangement of atoms and the number of free electrons. Materials with a highly ordered structure like metals tend to have low resistivity due to the easy flow of electrons, while materials with disordered structures like insulators have high resistivity because they impede the flow of electrons. Other factors like temperature and impurities can also affect resistivity.
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What is the reason for the difference in temperature?
Temperature differences are caused by variations in the amount of solar radiation received by different regions on Earth. Factors such as latitude, altitude, proximity to bodies of water, and ocean currents can also influence temperature variations. Human activities, such as deforestation and urbanization, can further exacerbate temperature differences through the urban heat island effect.
Is it possible for two different materials to have the same heat capacities?
Yes, it is possible for two different materials to have the same heat capacities. Heat capacity is an intrinsic property of a substance that depends on its mass and specific heat capacity. Therefore, materials with different compositions can still have the same heat capacity if their mass and specific heat capacities are appropriately matched.
What is the reason behind the color of objects and why do they possess such hues?
The color of objects is determined by the way they reflect and absorb light. Different materials absorb and reflect light in different ways, which results in the various hues we see. The specific wavelengths of light that are absorbed and reflected by an object determine its color.
What is a material transfer note?
A material transfer note is a document used to record the movement of materials from one location to another within a company or organization. It typically includes details such as the type and quantity of materials being transferred, the reason for the transfer, and the individuals responsible for sending and receiving the materials.
What makes the length of the year increase and decrease why?
The length of a year on Earth is determined by its orbit around the sun. The gravitational pull from other celestial bodies, such as the moon and planets, can cause slight variations in Earth's orbit, leading to changes in the length of a year. These variations are the reason for leap years and the gradual increase in the length of our year over thousands of years.
Is resistivity the same for all materials with the same length?
Yes, because the resistivity does not depends on the length of any materials. Resistivity is constant.-Ariel DUmancas-No. The resistance in different materials is different. For example, Copper has a low resistance to electricity compared to plastic. This is also one reason why copper is used instead of plastic in wires. Knowing the resistance of different material helps decide what material should be use for different objects (like copper for wires in plastics)
What combination of factors is most suitable for increasing the electrical conductivity of metals?
Resistivity is a constant for any particular material, and independent of that material's physical dimensions or shape. However, it does vary with temperature which is why resistivity is always quoted at a particular temperature. Variations in resistivity due to temperature change is the reason that the resistance of a material varies with temperature. In SI, resistivity is expressed in ohm metres.
What is BCS theory?
Bardeen, Cooper, Schrieffer - these three scientists gave the theory to explain about the reason for super conductivity of materials. Hence named as BCS theory. Superconductivity is a phenomenon in which certain substances at very low temperatures such as 3K or 4K their resistivity totally vanishes and become cent percent conductor. So named as super conductor But actually, accidentally found by H. Kamerlingh Onnes. He found mercury lost its resistivity totally at 4.2K.
Why are different materials in different states at room temperature?
this is because the type of materials you have and the type of object you have. the reason for this is because, for example glass is room temperature because the air-con in your classroom is set at room temperature and the glass of your window contracts to the air con making it room temperature
Is book of Mormon in flemish?
No. It is available in Dutch but not Flemish. Cumorah.com speculates the reason why: "Containing few literary and vocabulary variations with standard Dutch, Flemish is unlikely to merit its own translations of LDS materials and scriptures as dissimilarities with Dutch are primarily phonological"
What is the reason for the difference in temperature?
Temperature differences are caused by variations in the amount of solar radiation received by different regions on Earth. Factors such as latitude, altitude, proximity to bodies of water, and ocean currents can also influence temperature variations. Human activities, such as deforestation and urbanization, can further exacerbate temperature differences through the urban heat island effect.
Why do I see different colors out of each eye?
The reason you see different colors out of each eye is due to variations in the way light is processed by each eye's individual cone cells, which are responsible for detecting color. This can be influenced by factors such as genetics, eye health, and potential color vision deficiencies.
Should there be extra yarn while knitting?
If you are speaking of the completed piece, then yes. All amounts are approximate and there will be leftovers because of the variations in knitting such as tension or different needles. Any hand work materials guidelines are written with the "overage" in order to make sure the piece has enough to complete it. This is one reason that most knitters have some crochet skills. "Granny squares" are a great way to use up those leftovers.
What are the factors that affect resistance and their units?
Resistance is directly-proportional to a material's length and resistivity, and inversely-proportional to its cross-sectional area.In SI, length is measured in metres, cross-sectional area is measured in square metres, and resistivity is measured in ohm metres.In North-American units, for conductors of circular cross-section, length is measured in feet, cross-sectional area is measured in circular mils, and resistivity is measured in ohm circular mils per foot (although, for some strange reason, it is often written as 'ohms per circular mil foot', which doesn't make much sense if you apply unit analysis!).Note that resistivity is affected by temperature, so figures for resistivity are always quoted at specific (usual ambient) temperatures. So temperature indirectly affects resistance.
What was the reason for Roald Dahl to include villains in his children's stories?
Every book needs to have villain or else there isn't much of a plotline or a climax. But there are different kinds of villains. There are people like the Twits in Roald Dahl's book The Twits or there are villains like The Joker in Batman. There are so many different villains and so many different variations.
Why do I feel different emotions for no reason at all?
No reason at all.
How can you all be genetically different from each other if the genetic code is universal?
While the genetic code is universal, variations in the arrangement and sequences of genes within each individual's genome lead to genetic differences. These variations can arise from mutations, genetic recombination, and other mechanisms that occur over time. Additionally, environmental factors can also influence gene expression and contribute to individual genetic diversity.
