Extremely low frequency
id:
extremely-low-frequency-222-3312652
title:
Extremely low frequency
text:
Extremely low frequency (ELF) is the ITU designation for electromagnetic radiation with frequencies from 3 to 30 Hz, and corresponding wavelengths of 100,000 to 10,000 kilometers, respectively. In atmospheric science, an alternative definition is usually given, from 3 Hz to 3 kHz. In the related magnetosphere science, the lower-frequency electromagnetic oscillations are considered to lie in the ULF range, which is thus also defined differently from the ITU radio bands. ELF radio waves are genera
brand slug:
wiki
category slug:
encyclopedia
description:
The range 3-30 Hz of the electromagnetic spectrum
original url:
https://en.wikipedia.org/wiki/Extremely_low_frequency
date created:
2001-10-08T17:47:48Z
date modified:
2024-09-13T22:57:10Z
main entity:
{"identifier":"Q741979","url":"https://www.wikidata.org/entity/Q741979"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/3/3d/Clam_Lake_ELF.jpg","width":3000,"height":2400}
fields total:
13
integrity:
16