Elastance is a physical quantity representing the resistance of a component to storing charge. It has units of [current]-2[mass][length]2[time]-4.
The ideal circuit element possessing only elastance is called the capacitor, typically measured by its capacitance rather than elastance. Elastance is related to the voltage and charge by .
Elastance Formulae[]
Shape | Elastance Formula | Variables |
---|---|---|
Plates | a, b = heights of plates, A = area of plates | |
Tubes | a, b = radii of tubes, l = length of tubes | |
Spheres | a, b = radii of spheres |
Elastances[]
Elastance | Capacitor |
---|---|
5.6×1044 F-1 | Planck capacitance |
See Also[]
Circuit Theoretic Quantities |
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Charge · Current Flux linkage · Voltage Inductance · Resistance · Elastance Capacitance · Conductance · Reluctance |