Talk:Driven right leg circuit

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The information from this article was taken from another page which had this exact contents under an incorrect label (User:Enginerd1). I just created a new article with the correct title. All the work on this article so far is due to Enginerd1.

The circuit here is a simple instrumentation amplifier, not a driven leg circuit 128.151.71.18 (talk) 13:56, 6 March 2008 (UTC)shseidman[reply]

Most of the 50Hz/60Hz noise is picked up by the body acting as an antenna, not the cables. (The cables are typically shielded)

The body isn't technically an antenna, just capacitively coupled

It is a common misconseption/misnomer that the human body acts like antenna when capturing mains hum. It's more suitable to say the body is capacitively coupled to the power lines, because of the proximity between these two, which is much shorter than one wavelength (c / 50Hz ≈ 6000km). See Near and far field. The current wording is not totally incorrect, as the term "antenna" is sometimes also used for near-field devices (see NFC), but calling it capacitive coupling would leave no room for debating semantics. Trupples (talk) 15:50, 28 September 2023 (UTC)[reply]