2_ElectricFields0910

# 2_ElectricFields0910 - Electric Field Electric Field...

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1 Electric Field Magnitude of the Electric Field Electric Field Lines PE and Electric Fields Book – Ch. 33.1 – 33.2 Electric Field Michael Faraday developed the concept of electric fields in the early 1800’s. The space around every electrically charged body has an electric field. When another charge enters the field, an electric force acts on it. Any electric field has both magnitude and direction. What kind of quantity is this? Vector Quantity Vectors can be represented as arrows with the arrow pointing in the direction of the electric field. Electric Field Lines The electric field is represented by vectors (arrows) drawn around the charge. (charge in center = 0!) Direction based on force of a positive charge and charge in question. Length of vectors show magnitude of the force.

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2 Examples: For a negative charge, the (+) test particle would be attracted (arrows towards). For a positive charge, the (+) test particle would be repelled (arrows away).
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