Copper.
Conductors. Some materials are willing to let a few electrons move from molecule to molecule. Materials that let electrons move through them are called conductors. Although some are better than others, most metals are good conductors of electricity. Silver, Gold, and Platinum are good conductors but are expensive, so they are only used when price is not important compared to function Types of Conductors. Many materials are used to transmit electrical energy, but those most frequently specified are copper, copper-covered steel, high strength copper alloys, and aluminum. For more unusual applications, conductors are fabricated from pure nickel, pure silver, copper-covered aluminum, and a host of metals, metal alloys, and metal combinations. Copper – Copper is by far the most widely used conductor material. Among its physical properties are high electrical and thermal conductivity, ductility, malleability and solderability, high melting point, and high resistance to corrosion, wear and fatigue The resistance of a given conductor depends on the material it is made of, and on its dimensions. For a given material, the resistance is inversely proportional to the cross-sectional area; for example, a thick copper wire has lower resistance than an otherwise-identical thin copper wire. Resistivity and conductivity are reciprocals : . Resistivity is a measure of the material's ability to oppose electric current. This formula is not exact: It assumes the current density is totally uniform in the conductor, which is not always true in practical situations. In metals such as copper or aluminum, the movable charged particles are electrons. Positive charges may also be mobile, such as the cationic electrolyte (s) of a battery, or the mobile protons of the proton conductor of a fuel cell. Resistivity and conductivity are reciprocals : . Resistivity is a measure of the material's ability to oppose electric current. This formula is not exact: It assumes the current density is totally uniform in the conductor, which is not always true in practical situations. In physics and electrical engineering, a conductor is an object or type of material that allows the flow of electrical current in one or more directions. For people, a wire is an electrical conductor that can carry electricity along its length. Resistivity and conductivity are reciprocals : . Resistivity is a measure of the material's ability to oppose electric current. This formula is not exact: It assumes the current density is totally uniform in the conductor, which is not always true in practical situations. Most familiar conductors are metallic. Copper is the most common material used for electrical wiring. Silver is the best conductor, but is expensive. Gold is used for high-qua … lity surface-to-surface contacts. Aluminium too is a good conductor. Water and metal are the two most well known conductors. They are conductors because they let electricity flow through them. · just now. Report Abuse. Electrical conductors: Pure metals and the best conductors. Copper is the most common material for electrical wiring, and gold for high-quality surface-to-surface contacts,the reason is that it prevents corrosion because it doesn't react with Oxygen. Most metals are good conductors, gold is good but expensive, copper is another and relatively inexpensive. Many multi layer ceramic ceramic capacitors, used in electronics, use palladium. Materials that do not let electrons move through them are called insulators. Glass is an example of a type of material that keeps its electrons tightly controlled. Glass is made of silicon molecules, organized very tightly in to crystaline structures. Glass is an extremely good insulator. Some materials are willing to let a few electrons move from molecule to molecule. Materials that let electrons move through them are called conductors. Although some are better than others, most metals are good conductors of electricity. Most materials that are good conductors of electricity have metal elements, which are good conductors. For example, water usually conducts electricity because of the metal tra … ces of elements, such as zinc, that are inside of the water. Water and metal are the two most well known conductors. They are conductors because they let electricity flow through them.
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what types of materials make good conductors