volt

Click a letter for the index

Or search the encyclopaedia:

 

 

Go

 

SI unit of electromotive force or electric potential (see potential, electric). A small battery has a potential of 1.5 volts, while a high-tension transmission line may carry up to 765,000 volts. The domestic electricity supply in the UK is 230 volts (lowered from 240 volts in 1995); it is 110 volts in the USA.

The absolute volt is defined as the potential difference (PD) necessary to produce a current of one ampere through an electric circuit with a resistance of one ohm. It can also be defined as the potential difference that requires one joule of work to move a positive charge of one coulomb from the lower to the higher potential. It is named after the Italian scientist Alessandro Volta.

Red represents the blood shed during the fight for independence. According to legend Albanians are descended from the eagle, which is the national emblem. Effective date: 22 May 1993. >>