# Cylindrical Capacitor

on . Posted in Electromagnetism

Cylindrical capacitor, abbreviated as C, is a type of capacitor used to store an electric charge.

## Cylindrical Capacitor formula

$$\large{ C = 2 \; \pi \; \epsilon \; \frac{ l }{ ln \;\frac{ R }{ r } } }$$
Symbol English Metric
$$\large{ C }$$ = cylinder capacitance $$\large{F}$$ $$\large{\frac{s^4-A^2}{kg-m^2}}$$
$$\large{ l }$$ = capacitor length $$\large{in}$$ $$\large{mm}$$
$$\large{ r }$$ = inside radius $$\large{in}$$ $$\large{mm}$$
$$\large{ R }$$ = outside radius $$\large{in}$$ $$\large{mm}$$
$$\large{ ln }$$ = natural log $$\large{dimensionless}$$
$$\large{ \epsilon }$$ (Greek symbol epsilon) = permittivity of free space $$\large{lbf-ft}$$ $$\large{J}$$
$$\large{ \pi }$$ = Pi $$\large{3.141 592 653 ...}$$

Tags: Electrical Equations