Parallel Plate Capacitors

The video tutorial explains the derivation of the capacitance equation for parallel plate capacitors, emphasizing the role of dielectrics. It covers the electric field between plates, the effect of dielectrics on capacitance, and introduces the dielectric constant. The tutorial concludes with deriving the capacitance equation when a dielectric is present, showing how it increases capacitance.

What assumptions are made about the space between the plates of a parallel plate capacitor when deriving its capacitance?

How does the electric potential difference change when a dielectric is added to a capacitor?

How does the charge on a capacitor change when a dielectric is added, assuming the capacitor is isolated?