In this video Paul Andersen explains how electric permittivity of a material resists the formation of electric fields. Capacitors store energy be preventing the formation of electric fields in dielectric material. The electric...

In this video Paul Andersen explains how resistors and capacitors affect circuits. The resistance of a resistor is affected by the resistivity of the material and the geometry of the resistor. The current through a resistor can be...

Switching Locations: Understanding Frenkel Defects

In the event that an ion is absent from its lattice site, resulting in a vacancy or a hole in that location, and it occupies an interstitial site, the compound will be able to...

We derive the equation for the capacitance of a parallel plate capacitor. Learn how adding a dielectric material to a capacitor affects its capacitance and discover the definition of the dielectric constant.

This problem is about what happens to the capacitance of a capacitor when you add a dielectric.

These are my solutions to the Multiple Choice section of the Electricity and Magnetism portion of the 1998 AP Physics C released exam. AP® is a registered trademark of the College Board, which was not involved in the production of, and...

AP Physics C: Electricity and Magnetism review of Capacitors including: demonstrating what capacitors are, defining capacitance, discharging a capacitor, deriving the capacitance of a parallel plate capacitor, defining dielectrics,...

Instrumental Analysis: Capacitance 1

This nugget explains the effects of inserting a dielectric between a capacitor. It also explains the concept of dielectric constant.