## Physics - Capacitance

### Gap-Filling Quiz

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alternating      area      charge      charging      conductor      coulomb      dielectric      direct      distance      divided      Earth      farads      joule      parallel      permittivity      potential      volts      work      zero
The potential difference between two points in an electric field is the done in bringing a unit positive charge from one point to the other. It is measured in . The volt is defined as the potential difference between two points if one of work is done in bringing a charge of one from one point to the other.
An electric current is a flow of . The electric potential at a point is the potential difference between the and that point. The Earth's potential is taken to be .
The capacitance of a conductor is the ratio of the charge on the to its . It is measured in .
A parallel plate capacitor consists of two plates separated by a . Its capacitance is equal to the charge on the plate by the potential difference between the plates. The capacitance of a parallel plate capacitor is proportional to the of overlap between the plates and the of the dielectric, and is inversely proportional to the between its plates.
The energy stored in a capacitor is equal to the work done in the capacitor. Capacitors allow current to flow and block current.