← (nm05) 電磁感應 Electromagnetic Induction →

Faraday's Induction Ring http://www.bbc.co.uk/ahistoryoftheworld/objects/nSFvkPPCRdWQJ0hzSzrB4A)

Outline

  1. Faraday Phet Simulation
  2. Inductors (with PPT)
  3. Why does a does a spark plug use an inductor 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

Animation of fields (2 minutes)
家   /   教學   /   物理   baixiaoming AT gmail.com