It is very very expenisive and it can go rusty if you don't use it fo a very long time ....
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yes
it uses elctricity
copper losses Comment: Advantages: Their operation is silent They have a high efficiency They are relatively safe Disadvantages Expensive Copper losses and hysteress losses
Could have radation poisoning
Copper will change overtime. Perfect example is the Statue of Liberty. She has copper sheets and the salt air has made her green. This is oxidation that causes it to turn.
I cannot imagine any advantage of copper coating stainless? Stainless will not oxidize as readily as copper. I have uses lead coated copper flashing that was exposed to acid rain and bird droppings etc.
Advantages, Disadvantages and ApplicationsThe various advantages of Shaded pole motors includes Very cheap and reliableEasy to constructExtremely rugged in natureDisadvantages includesLow efficiencyLow starting torqueSince the shading coil is made of copper, the copper loss is high.See the related link for further information.
One advantage of using recycled copper is that if you compare with the increasing rate of mobile phone/telecommunication and other metal based items sales, demand for copper materials also vastly increased (mobile phone industries). It would be a great idea if they then reused copper as they would save money and have a "greener" image to the public.
Copper is a better conductor than aluminum. Two wires with the same cross-sectional area, or any two constructs with the same physical shape and size, one fabricated from aluminum and the other from copper, the one made of aluminum always has higher ohmic resistance.
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Advantages of Daniel cell. 1.it gives a small current for much longer time than the simple cell. 2.polarization does not occur at the copper electrode because of the presence of depolarizer copper (ii)sulphate solution.