PHY241_Lab2

PHY241_Lab2 - Electrostatics and the Electric Field By Alex...

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Electrostatics and the Electric Field By Alex Chambers Lab Preformed: 9 September 2008 Report Submitted: 16 September 2008 Goals: The goal of this lab was to gain first hand experience in the lab setting with the fundamental concepts of an electric field and the effects an electric field has.
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Theory: The electric field is a mathematical representation of electric in the environment. It is simple a definition using vectors to represent the electric field in a region where the magnitude of those vectors is the force on something. With this in mind, the definition can be qualitatively expended to include like charges repelling and opposite charges attracting. In a simple and general form, the electric field can be defined as: E= 1 q _ r 4πε 0 r Procedure: Pith Ball And Glass Rod I. The materials provided include a pith ball, a small almost weightless ball, hanging from a thin piece of string; a glass rod; and various materials to rub the rod with. II. By rubbing the glass rod, a paper towel worked the best in this lab, a charge was created on the rod. It doesn’t matter whether the charge was positive or negative, based on the principle like charges repelling and opposite charges attracting, a qualitative comparison can be drawn between the pith ball and the glass rod. III. With a charged rod and again with a neutral rod, it is brought close to the pith ball being
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PHY241_Lab2 - Electrostatics and the Electric Field By Alex...

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