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2 cards from this section. Quick, good the night before a test.
Define a dielectric.
Think about how it reacts compared to a conductor.
What is polarization?
Consider why molecules line up when subjected to electric fields.
What occurs in a dielectric material when placed in an electric field?
Relate this to the definition of a dielectric.
True or False: Polar molecules have a fixed dipole moment.
Consider the characteristics of polar versus non-polar molecules.
A capacitor with vacuum between its plates has a capacitance of 10 pF. If a dielectric with K=5 is inserted, what is the new capacitance?
Use the relationship between the dielectric constant and capacitance.
Explain the energy stored in a capacitor when a dielectric is inserted after charging is completed.
Think about how the capacitance changes and how energy is calculated.
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