Electricity

Electricity - Electricity A. Electric Charge 1. Static...

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Electricity A. Electric Charge 1. Static electricity is the accumulation of excess electric charges on an object. a. More e¯ = negative charge b. More protons = + charge 2. Charge is conserved (e¯ move from one object to another).
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3. Law of Charges a. Opposite charges attract. b. Like charges repel. 4. Electric fields a. Electric fields exert force on objects within the field. b. Weaker with distance.
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5. Transferring electric charge a. Conductors: e¯ move easily. b. Insulators: hold e¯ tightly. c. Contact charging is done when two materials are rubbed together (best with insulators). d. Charging by induction is done when one charged object induces a charge on another.
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6. Lightning a. Large static discharge between the earth and clouds. b. Lightning was found to be static electricity by Ben Franklin. 7. Grounding a. Conductive path to Earth. b. Lightning rods & plumbing.
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8. The electroscope can be used to detect electric charge
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B. Electric Current 1. The reason electric charge flows
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This note was uploaded on 11/22/2011 for the course EL ED 302 taught by Professor Staff during the Winter '08 term at BYU.

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Electricity - Electricity A. Electric Charge 1. Static...

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