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Learn about electrical charge carriers, insulators, and conductors. Discover examples of materials that restrict or allow the flow of electrical charges. Understand how wire thickness and length impact conductivity.
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Electricity Lesson 2 Electrical Charge Carriers
A. A material in which electrical charges do not move freely from place to place is called a Insulator.
B. Conductors- a material in which electrical charges move freely from place to place.
C. Examples of insulators- rubber, Saran Wrap, cotton, paper, silk, wool, nylon, glass, and wood
D. Examples of conductors- Brass, silver, nickel, copper, steel, aluminum, and water (if not pure)
E. Thick wires make better conductors than thin wires of the same material.
F. Short wires are better conductors than long wires of the same material.