The metals that conduct electricity the best are silver, copper and aluminum. Both copper and aluminum are used extensively in electrical wiring. Silver, though it conducts electricity better than either of the other two, is too expensive for common usage.Know More
Known since antiquity, silver is a brilliant metal whose chemical symbol is Ag, after argentum. It not only conducts electricity better than other metals but also conducts heat better. It also has the lowest contact resistance.
Copper is the second best conductor of electricity. Also known since ancient times, copper is a bright reddish metal that can also be drawn into thin wires. It's been used to conduct electricity since the early part of the 19th century.
Aluminum, a strong, soft but lightweight metal, is also an excellent conductor of electricity. It conducts electricity 61 percent as well as copper even though it's less dense. However, aluminum wiring isn't used much in residential electrical systems because of problems that had little to do with the qualities of the metal, but how it was installed. Much aluminum wiring was installed after World War II, when copper wire was scarce. The demand resulted in substandard installation, which resulted in circuit failures and fires.Learn more about Electricity
Silver is the best metal conductor, but graphene is the best overall material at conducting electricity. Graphene consists of carbon atoms arranged in extremely thin sheets, and has the lowest electrical resistance of any commonly known material.Full Answer >
Silver is the most electrically and thermally conductive metal. Other metals with a high level of electrical conductivity are copper and gold.Full Answer >
The abbreviation "mA" denotes the International System unit for electrical current known as the milliampere. One milliampere is equal to one-thousandth of an ampere. The unit is named for the 18th and 19th century French physicist Andre-Marie Ampere, who studied electromagnetism.Full Answer >
Electricity, the flow of electric charge, powers much of the technology used in modern society. The Energy Information Administration explains that electricity is a secondary source of energy, meaning that it comes from the conversion of other energy sources.Full Answer >