Ch1+Electric+Charge - E LECTRIC C HARGE A LI A LZAHRANI...

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Unformatted text preview: E LECTRIC C HARGE A LI A LZAHRANI Electric charge is an intrinsic property of particles, such as electrons and protons. There are two types of charges: positive and negatives. Electrons have a negative charge. Protons have a positive charge. Charged particles can interact to create an electrical force. Similar charges produce a repulsive force, where each one repels the other. Dissimilar charges produce an attractive force, where each one attracts the other. E LECTRIC C HARGE N EUTRAL AND C HARGED A TOMS The charge on an ion is called an electrostatic charge. There are different ways to electrostatically charge a non charged particle: ◦ Friction which transfers electrons between two objects, ◦ Contact with a charged body which results in the transfer of electrons, and ◦ Induction which produces a charge redistribution of electrons in a material. E LECTROSTATIC C HARGE Materials are classified into four categories in terms of their capability of conducting electricity. Insulators: materials that a significant amount of electrons are not free to move. Conductors: materials that a significant amount of electrons are free to move. Semiconductors: materials that sometimes behave like insulators and sometimes behave like conductors, intermediate between conductors and insulators. Superconductors: materials that almost all electrons are free to move, perfect conductors. C ONDUCTORS AND I NSULATORS The fundamental charge is the electron charge ( ? ) which is 1.6 10-19 Coulomb (C), where the Coulomb (C) is the SI unit of charge....
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This note was uploaded on 02/18/2012 for the course PHYSICS 202 taught by Professor 1 during the Spring '12 term at King Abdulaziz University.

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Ch1+Electric+Charge - E LECTRIC C HARGE A LI A LZAHRANI...

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