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Lecture Notes for PHYS 140 - How Things Work at Illinois (UIUC)

Notes Information

Material Type:Class Note
Professor:Staff
Class:PHYS 140 - How Things Work
Subject:Physics
University:University of Illinois - Urbana-Champaign
Term:Spring 2009
Keywords:
  • Electric Fields
  • Lower Voltage
  • Either...or
  • Different Way
  • Observations
  • Positive Charge
  • Electric Field
  • Semiconductor
  • Electricity
  • Benjamin Franklin
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Sample Document Text

10.1-10.2 Static Electricity & Xerographic Copiers Ideas for today: .Charge and Static Electricity .Electric fields and electric potential .Photocopiers Observations About Static Electricity . Static electricity builds up on non-conductive things . Objects with static charge either cling or repel . Static electricity can lead to shocks . Static electricity can make your hair stand up Ben Franklin named charge as "positive" and "negative" ++ + - - - protons, positrons,. electrons, muons,. Charge comes in fundamental units of 1.6 10-19 Coulombs Charge is conserved! Educational video about Benjamin Franklin Charge Dependence Like Charges Repel Opposite Charges Attract Distance Dependence Forces Between Charges F ?1/r2 Net Charge . Net charge is the sum of an object's charges . Most objects have zero net charge (neutral) . Neutral objects contain equal + & - charges + ++- - - + ++- - - + ++ - - - + ++- - - before after Polarizing Objects: Click ...

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