Lecture Notes for PHYS 2102 - GEN PHYS FOR TECH ST at Louisiana State (LSU)

Notes Information

Material Type:Class Note
University:Louisiana State University
Term:Spring 2009
  • Magnetic Fields
  • Magnetic Field Lines
  • Magnetic Field
  • The Independent
  • Everyday Life
  • Magnetic Forces
  • Positive Plate
  • Cathode Ray
  • Electric Fields
  • Cathode Ray Tube
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Physics 2102 Christian Buth Star Quake on a Magnetar! "I'll be back.." Aurora Borealis Version: 02/27/2009 .? Technique to solve multiloop circuits 1.? Simplify "compile" circuits 2.? Apply loop rule and junction rule 3.? Equations to unknowns .? RC circuits: simple circuit with time-varying current; time constant is ? = RC .? Charging a capacitor: q(t) = CE(1e t/RC ) .? Discharging a capacitor: q(t)=CEe t/RC How Do You Use Magnetic Fields in Your Everyday Life!? .? Two classes of magnets: ?? a current through a wire is an electromagnet ?? a magnetic material is a permanent magnet .? Magnets attract iron pieces .? Magnets align in North-South direction .? Magnets create a magnetic field B which manifests by a magnetic force .? Force will serve to define B Electric fields are created: .? microscopically, by electric charges (fields) of elementary particles (electrons, protons) .? macroscopically, by adding the field of many elementary ch...

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