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One of the main disadvantages of copper cables is that copper is expensive compared with other metals such as iron or aluminum. Copper can also corrode, though not as much as some other metals.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoWe should not use Aluminium conductors....because there are many electrons present in the atom of aluminium ... so as the current is passed through it... heating effect is caused....therefore using aluminium conductor is not beneficial over using a copper wire
Wiki User
∙ 10y agoOne disadvantage of having a copper roof is that the metal does not buffer noise as well as softer materials. Another disadvantage is that a copper roof is generally more expensive than shingles.
Wiki User
∙ 8y agoSuperconductors ARE used, but only for very specialized applications because they must be kept very cold (near absolute zero for normal superconductors, at the temperature of liquid nitrogen for "high temperature" superconductors). Keeping them cold makes them expensive to use.
Wiki User
∙ 13y agounfortunately No superconductors have yet been found
Wiki User
∙ 9y agoStructured cabling has many advantages, but only several disadvantages. Some of these include its expense, as well as having a poor EMC impedance tolerance.
Ofomata Chinelo
Disadvantages of good conductor
Wiki User
∙ 12y agoThey only work at cryogenic temperatures.
Lucas Hense
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Name three of the best conductive materials.?
Leaving aside superconductors: graphene, silver, copper.
What do you call materials with a resistance of 0 W?
superconductors
Why are superconductors efficient than ordinary conductors?
It doesn't. Superconductors have no (virtually no) losses, they are purely inductive. This has no bearing on how current flows. Normal conductor will heat up due to resistive losses of the line (I^2 R losses), while a superconductor shouldn't.
Which of these is a drawback of hydraulic fracturing?
Earthquakes
What is a drawback to use of oil shale to produce energy?
Expense
What is a drawback to using superconductors?
They are usually quite expensive and require very low operating temperatures.
What is the difference between superconductors and normal conductors?
Normal conductors have resistance which restricts the flow of electricity and wastes some of the energy as heat. The resistance increases with the length of the conductor. Superconductors have close to zero or zero resistance and a few other properties, but the resistance is the most important one because it means electricity can flow more efficiently through it. The drawback is that all the superconductors we know of today have to be cooled down to EXTREMELY low temperatures to achieve superconductivity.
Which has the lowest resistance semiconductors superconductors insulator conductor?
superconductors, they have no resistance.
Why superconductors are not used often in everyday activities?
Because at present all superconductors must be super-cooled in a coolant such as liquid nitrogen to become superconductors.
What are most modern high temperature superconductors made of?
Resistance decreases with the decrease of temperature. Superconductors are made by lowering the temperature.
Why are scientists trying to make superconductors that can work at warmer temperatures?
Because refrigerating superconductors to the cryogenic temperatures needed by current ones is expensive, severely limiting the applications they are used in.Metallic superconductors need cooling to the temperature of liquid helium.Copper oxide ceramic superconductors need cooling to the temperature of liquid nitrogen.Room temperature superconductors, if they exist, would need little or no cooling.
What is the definition of low temperature supercoductors?
In a way, all currently existing superconductors are "low-temperature", but some more so than others. The traditional superconductors work up to about 20 K (or minus 253 Centigrade); more recent "high-temperature superconductors" work up to 100 K or so. 100 K is still minus 173 Centigrade, but it is much "hotter" than the traditional superconductors. The new "high-temperature" superconductors apparently work different than the old-fashioned ones; at least, the theory that explains the traditional superconductors fails to explain how the new superconductors work.
What is an antonym for drawback?
A drawback is a disadvantage. Thus, the opposite (or antonym) of "drawback" is "advantage"
How are superconductors different from conductors?
In superconductors, no electricity is wasted because there is no resistance to the flow of electrons. In conductors any electricity not used, is wasted.
What has the author Franklin Curtis Mason written?
Franklin Curtis Mason has written: 'The tunnel effect in superconductors' -- subject(s): Superconductors
What has the author Anatoli Larkin written?
Anatoli Larkin has written: 'Theory of fluctuations in superconductors' -- subject(s): Fluctuations (Physics), Superconductors
How are superconductors different from insulators?
Superconductors are materials that let current or electricity pass through them. Insulators are materials that don't allow current or electricity to pass through them. Superconductors are mostly all metals. Insulators are wood, plastic, and paper.
