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When reacted the resulting compound is Aluminium Oxide, which is an insulator. In simple terms this means the electorns that were previously free to flow in the metal, and conduct an electric current, are now tied up, or bonded to the oxygen it was reacted to. Thus the electrons are no longer free to flow, and so a current can no longer be carried by the material.
What else can I help you with?
Why does rusty iron no longer conduct electricity?
Rusty iron no longer can conduct electricity because it is corroded, or it reacts chemically to form a compound that weakens it.
What metals can't conduct electricity?
By definition, a solid metal, including liquid mercury, in its elemental form should conduct electricity. Under what condition a metal cannot conduct electricity? Normally when a metal is oxidized, the result is highly resistive, but then the oxide film (such as rust) is no longer considered metallic. Some metals, such as sodium, don't normally exist in its elemental form in nature. If these metals are somehow kept out of trouble (air), they too should conduct electricity. ==================================
Why alumium does not conduct electricity?
Special care must be taken to properly maintain aluminum connections. Generally, aluminum connections are retightened at least once a year. Because this is not practical in homes, aluminum is no longer allowed for home wiring. It is largely true that most homes built with aluminum no longer exist . . . because they burned down!
Unlike a gas plasma conduct electric current?
A gas plasma is a ionized gas in which atoms have lost or gained electrons, allowing it to conduct electricity. This is in contrast to a regular gas, where the atoms remain electrically neutral and do not conduct electricity well.
Which would stay cool longer aluminum or copper?
aluminum
Do drinks stay colder in aluninum cans or plastic bottles?
Aluminum cans tend to keep drinks colder for longer compared to plastic bottles, as aluminum is a better conductor of heat and can transfer the cold temperature of the drink to your hands quicker. Additionally, aluminum cans offer better insulation against outside temperatures, helping to maintain the coldness of the drink inside.
Do all magnetic materials conduct electricity?
Diamagnetic substance contains no unpaired electron therefore charge cannot be transferred through moving free electron--there is no free electron. It is however theoretically possible to force the substance to conduct electricity, by setting potential difference extremely high so that bonded electrons are forced to detach from the atoms. At this point, the substance is no longer diamagnetic.
What metal is used for electric cables?
Copper and aluminum are the most common metals used for electric cables due to their high conductivity and affordability. Copper is preferred for higher conductivity, while aluminum is more cost-effective for longer-distance transmission lines.
How does the diameter of wire coil affect the amount of electricity?
The diameter of the coil affects the amount of electricity as longer the coil longer the electricity.
Does a pop can stay cooler longer when aluminum foil is wrapped around it?
Aluminum foil does not keep a soda pop cooler for longer periods of time since aluminum is not an insulator. Foam can wrappers do insulate and keep soda cooler for longer periods of time.
What is the mineral makeup of aluminum?
The overwhelming majority of aluminum on earth is mined from a mineral called Bauxite. Once the aluminum is smelted out, it is no longer a mineral - it is an element: Aluminum.
Why don't gases conduct electricity at high pressures?
The conduction of electricity requires the presence of 'free' electrons on the conductor. When a gas is highly pressurized, electrons are 'tightly packed' with the atoms surrounding it and are no longer 'free' to move in its orbit. Without the movement of free electrons, electricity cannot be conducted through the highly pressurized gas.
