(measured in amperes) is what is meant by electric current. In most materials‚ the direct current is proportional to the voltage (as determined by Ohm’s law)‚ provided the temperature remains constant and the material remains in the same shape and state. Copper is the most common material used for electrical.Silver is the best conductor‚ but it is expensive. It has a resistivity of 1.6×10−8 Ω⋅m. Because gold does not corrode‚ it is used for high-quality surface-to-surface contacts. However‚ there are also
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Electroplating shop: Electroplating is primarily used for depositing a layer of material to bestow a desired property to a surface that otherwise lacks that property. Mainly electroplating is used for the following purposes: * Abrasion * Wear resistance * Corrosion protection * lubricity and * Aesthetic qualities The electroplating shop of Energypac Engineering Limited consists of three sections. i) Seven color section ii) Nickel section iii) Silver section Seven color section:
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of anhydrous copper sulfate (CuSO4) is white because it reflects lights in visible region of spectrum. Once water is added‚ it changes to blue as the structure of the copper transitional compound becomes Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. This compound absorbs light of wavelengths from 600 to 800nm (yellow-to-red region) light and blue light is transmitted. When ammonia is added to a solution of copper(II) cation‚
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motherboard‚ which the motherboard is designed to accommodate. Yet the lightweight make up of aluminum is beneficial because it adds little weight and stress to the motherboard. One of the best and most common materials used to make heat sinks is copper. Copper has a very high thermal conductivity of 400 W/mK. It is‚ however‚ heavier than aluminum and more expensive. But for operating systems that require an extensive amount of
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different chemicals and what chemical has more reactivity series then other Hypothesis: Iron + Copper Sulfate: Iron will displace copper because it is more reactive and it is going to end up as Iron Sulphide + Copper Copper + Silver Nitrate: Copper will displace Silver because it is more reactive and it is going to end up as Copper Nitride + Magnesium + Copper oxide: Magnesium will displace Copper because it is more reactive. Aluminum + Iron Oxide: Aluminum will displace Iron because it is more
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success. The most suitable material is going to be selected through comparisons among copper and aluminum alloys‚ which are commonly used in designing frying pan. This report is consisted of three parts. The first part is the introduction and objection. Second part is the findings and analyses through comparing two kinds of materials and the conclusion will be the last part. Objective People normally pick copper‚ cast iron‚ and aluminum alloys as the raw material for making a frying pan because
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illness develops from copper poisoning. Wilson’s Disease affects one in thirty thousand people world wide. The genetic defect causes excessive copper accumulation. Small amounts of copper are essential as vitamins. Copper is present in most foods‚ and most people get much more than they need. Healthy people excrete copper they don’t need‚ but Wilson’s Disease patients cannot. Copper begins to accumulate immediately after birth. Excess copper attacks the liver
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Mixing of two solutions. 55 Class IX EXPERIMENT No: 9 AIM: To study the external features of root‚ stem‚ leaf and flower of monocot and dicot plants. Material Required : Plants of Hibiscus/Peturnia/rose/pea and grass/maize/bamboo/lily or‚ any other ornamental herb with flower and fruits‚ simple or dissecting microscope‚ hand lens‚ slide‚ coverslip and razor /blade. Procedure : 1. 2. 3. Observe the differences in the external features of stem‚ leaf‚ root‚ flowers and seeds. To study the leaf‚ see
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we will study is called copper chloride hydrate. We first drive out the water‚ which is called hydration. This occurs if we gently heat the sample to a little over 100*C. The compound formed is anhydrous (no water) copper chloride. If we subtract its mass from that hydrate‚ we can determine the mass of the water that was driven off‚ and using the molar mass of water‚ find the number of moles of H2O that were in the sample. Next‚ we need to the find either the mass of copper of chlorine in the anhydrous
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Investigatory Project I. Problems and Setting A. Introduction Batteries‚ years ago‚ have taken the world by a storm and have since than became a necessity in one’s household. Sadly‚ even though they are tremendously useful‚ batteries have drawbacks‚ such as semi- affordable costs‚ limited shelf life and pollution. I had an idea on how to make an alternative to this that would not only work like the real thing but would also be healthy to our environment and light in my pockets
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