List of topics

• Kirchoff’s Laws

• power dissipation in ckts

• simple circuits

  • resistor networks, resistivity, Ohm’s Law

• RC circuits

• Lorentz Force Equation

  • free charge cyclotron motion
  • force on current in wire
  • magnetic dipole (I in loop)
    • interaction with B-field, torque, potential energy

• Magnetostatics:

  • currents “source” B-field
  • Law of Biot-Savart
    • explicit vector direction
  • Law of Ampere
    • symmetry of integral

• Examples of currents sourcing B-fields

  • wire
  • solenoid, toroid
  • infinite current sheet
  • current loop

• Electrodynamics

  • Faraday’s Law
    • time varying magnetic field through surface generates “EMF” around a perimeter
    • surface normal/right hand rule
    • what is EMF??
      • acts like voltage
    • what about conservative force and definition of potential….
  • Lenz’ Law (follows from F.L.)

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