Electromagnetic Fields

Mrs. Field's Electromagnetic Electromagnetic Fields (EMFs) Technically, the term "electromagnetic field" (EMF) refers to all fields throughout the electromagnetic spectrum. In common usage, however, the term usually refers to so-called extremely low-frequency no ionizing radiation fields—those fields below 300 Hertz (Hz)—and often only to those fields in the 50 to 60 Hz range, which are also known as power-frequency EMFs. As a type of no ionizing radiation, EMFs in this range do not hav...
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