Frequency Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.Anti-spam check. Do not fill this in! === Line current === {{main article|Utility frequency}} In [[Europe]], [[Africa]], [[Australia]], southern [[South America]], most of [[Asia]], and [[Russia]], the frequency of the [[alternating current]] in [[mains electricity|household electrical outlets]] is 50 Hz (close to the [[Musical note|tone]] G), whereas in [[North America]] and northern South America, the frequency of the alternating current in household electrical outlets is 60 Hz (between the tones B{{music|β}} and B; that is, a [[minor third]] above the European frequency). The frequency of the '[[mains hum|hum]]' in an [[audio recording]] can show in which of these general regions the recording was made. Summary: Please note that all contributions to Christianpedia may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here. You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Christianpedia:Copyrights for details). Do not submit copyrighted work without permission! Cancel Editing help (opens in new window) Discuss this page