Capacitors |

A capacitor of ** C** farads with

*Q = CV*

The energy stored in a capacitor is equal to the work done to charge it,

*U = ^{1}/_{2}CV^{2}*,

where stored energy ** U** is in joules.

**5 RC Rule of Thumb**: A capacitor charges or decays to within 1% of its final value in 5 time constants.

- The
**Time Constant**,seconds, of an RC circuit is the product of its resistance,*t*ohms, and capacitance,*R*farads,*C* .*t = RC*

**This page is for INFORMATIONAL PURPOSES ONLY.**

Last modified: 02/06/1999