PHY C18: Capacitance

We know that electric charges & electric potential are related:

  • An imbalance of charges creates a difference in electric potential (AKA an electric field is induced!).
  • If electric charges are free to move, they will move when there is a difference in electric potential.

But what if the charges are NOT free to move?

Now we will take a look at objects which hold an IMBALANCE of charge: capacitors.

  • Definition of Capacitance
    • Isolated conductors
    • Parallel-plate capacitor
  • C = Q/V
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