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Faraday's Induction Ring http://www.bbc.co.uk/ahistoryoftheworld/objects/nSFvkPPCRdWQJ0hzSzrB4A) Federal Mogul Champion Iridium plugs

Outline

  1. Faraday Phet Simulation
  2. Inductors (with PPT)
  3. Why does a does a spark plug use an inductor (solenoid) not a capacitor?


Inductors (induced emf)

Area:ElectricityMagnetism
Equations C = Q / Δ V = ε A/d L = Φ / I = μ N2 A / l
Δ V = Q/C -L (dI/dt)
u (energy density)= (ε /2) E2 1/(2 μ) B2

LC Oscillator

Energy & fields

Oscillations in LC Circuits with charge shown.
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C G White (白愛恩), J D White (白小明)
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