#### Mechanical Equivalent of a Capacitor is a Spring

The mechanical analog of a capacitor is the compliance of a spring. The voltage across a capacitor corresponds to the force used to displace a spring. The charge stored in the capacitor corresponds to the displacement of the spring. Thus, Eq.(E.2) corresponds to Hooke's law for ideal springs:

where is called the spring constant or spring stiffness. Note that Hooke's law is usually written as . The quantity is called the spring compliance.

Next Section:
Mechanical Equivalent of an Inductor is a Mass
Previous Section:
Properties of Paraunitary Filter Banks