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What are Electrical Properties?

Patrick Wensink
Updated May 17, 2024
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Electrical properties are the physical conditions that allow an electrical charge to move from atom to atom in a specific material. These properties differ greatly between the three major types of materials: solids, liquids and gases. Electric properties of solid materials like metal are high, while electric charges do not move as easily in water and have an even more difficult time with gases. In each element, there are exceptions: some solids are poor conductors, and some gases can become excellent conductors.

Solids and electricity often are a perfect combination for conductivity. The electrical properties of copper, steel, and other metals provide the optimum opportunity because of the physical closeness of atoms. When electrons can pass easily between atoms, this promotes electrical conductivity. Solids like silver, copper and aluminum are popular with electrical work because very little energy is lost when electricity travels through these metals.

Not all solids, however, possess the strong electrical properties of metal. Items like glass, wood and plastic are considered insulators because the tightly packed electrons do not share electrical charges easily. When an electrical current is introduced to these materials, nothing happens. These solids are still valued in electrical work, but often to protect humans against electrical charges.

The electrical properties found in liquids vary depending on the material. Salt water, for example, has properties that allow for excellent conductivity of electricity because the ions in salt promote a free flow of electricity. Even though electricity can pass through regular water, drinking and distilled waters are considered insulators because of the poor flow of electricity. Other liquids, like oil, gasoline and kerosene contain even better insulating properties because electricity has a difficult time passing through.

The electrical properties of gases fluctuate most of all among the three basic materials. In a normal state, gases like oxygen, carbon dioxide and nitrogen are such poor conductors of electricity they are actually considered non-conductors. If these gases are exposed to different elements, however, properties quickly change. For example, when barometric pressure drops, like with an electrical storm, gases become a better conductor of electricity. The pressure creates a more dense atmosphere and allows for electricity, often in the form of lightning, to move more freely.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Patrick Wensink
By Patrick Wensink , Former Writer
Patrick Wensink, a bestselling novelist and nonfiction writer, captivates readers with his engaging style across various genres and platforms. His work has been featured in major publications, including attention from The New Yorker. With a background in communication management, Wensink brings a unique perspective to his writing, crafting compelling narratives that resonate with audiences.

Discussion Comments

By Chromerock — On Mar 17, 2014

What are the common ways to measure conductivity? It seems to be kind of a relative scale. Water might not be very conductive, but it's still conductive enough to destroy an electrical system or electrocute someone.

Also, what is the relationship between electrical resistance and thermal resistance? Does that relationship have to do with electrical heat and why you can use copper wire more universally than aluminum wire?

Patrick Wensink

Patrick Wensink

Former Writer

Patrick Wensink, a bestselling novelist and nonfiction writer, captivates readers with his engaging style across various...
Learn more
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