| − | {{quotebox|All politicians flip and flop, dating from the early days of the republic when a right honorable gentleman could be for hanging horse thieves in one town and prescribe [[Christian]] mercy down the railroad line, and get away with it. The invention of the telegraph ruined that. [http://www.washingtontimes.com/news/2008/jul/15/when-both-guys-look-like-losers/ Wes Pruden] }}
| + | A '''flip-flop''' is an important element in [[sequential electric circuits]], in which the output current changes value only when the "clock" input current changes. There are several types of flip-flops, including j-k flip flops and d flip flops. |