Why do some substances conduct electricity and some not?

Some are mode of uncharged particles called molecules. Sugar is such a substance. When sugar is dissolved in water, the solution does not conduct electricity, because there are no ions in the solution. Some substances that are made of molecules form solutions that do conduct electricity.

Why do some materials conduct electricity and some don t?

Conductors conduct electrical current very easily because of their free electrons. Insulators oppose electrical current and make poor conductors. Some common conductors are copper, aluminum, gold, and silver. Some common insulators are glass, air, plastic, rubber, and wood.

Why do some substances conduct electricity?

Conduction of electricity

Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ions are free to move from place to place. Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.

Why do some things not conduct electricity?

In many materials, the electrons are tightly bound to the atoms. Wood, glass, plastic, ceramic, air, cotton — these are all examples of materials in which electrons stick with their atoms. Because these atoms are so reluctant to share electrons, these materials can’t conduct electricity very well, if at all.

IT IS INTERESTING:  Are thoughts electrical impulses?

Why do some materials conduct electricity better than others?

As to why silver is the best conductor, the answer is that its electrons are freer to move than those of the other elements. This has to do with its valence and crystal structure. Most metals conduct electricity. Other elements with high electrical conductivity, are aluminum, zinc, nickel, iron, and platinum.

What are 5 good conductors?


  • silver.
  • copper.
  • gold.
  • aluminum.
  • iron.
  • steel.
  • brass.
  • bronze.

Is a dog a conductor?

A “DOG” conductor is a ACSR (aluminum conductor, steel reinforced) cable with nominal aluminum cross-sectional area of 100 mm². It has 6 aluminum strands of 4.72 mm diameter and 7 steel strands of 1.57 mm diameter. A “RABBIT” conductor is a ACSR cable with nominal aluminum cross-sectional area of 50 mm².

Is bleach a good conductor of electricity?

Diluted bleach is an electrically conductive liquid and it is corrosive.

Is lemon juice conduct electricity?

Lemon juice has citric acid in it. … Hence they can conduct electricity as these charged particles are able to flow inside the acid. Even though lemon as well as vinegar are weak conductors of electricity. The citric acid in the lemon will be acting as an electrolyte, a solution that can conduct electricity.

Does oil conduct electricity?

Oils conduct electricity minimally under normal conditions, which makes them useful as insulators. The extent of electrical conductivity depends on the concentration of impurities. The presence of salts and other substances generally increases the electrical conductivity of oil.

Does a diamond conduct electricity?

Diamond is a form of carbon in which each carbon atom is joined to four other carbon atoms, forming a giant covalent structure. … It does not conduct electricity as there are no delocalised electrons in the structure.

IT IS INTERESTING:  Can an acoustic electric be played without an amp?

Is there a metal that does not conduct electricity?

It’s usually mixed with metals, like lead, tin, iron. … Bismuth is the diamagnetic of all metals and therefore the thermal conductivity is lower than any metal except mercury. It’s a high electric resistance .

Is a poor conductor of electricity?

Tungsten and Bismuth are metals which are poor conductors of electricity. There are many, but some include Aluminum, Bismuth, Gallium, Indium, Lead, Thallium, Tin, Ununhexium, Ununpentium, Ununquadium, and Ununtrium.

Power generation