<?xml-stylesheet type="text/xsl" href="https://community.element14.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Do Pure Reactances Produce Noise?</title><link>/members-area/personalblogs/b/blog/posts/do-pure-reactances-produce-noise</link><description>I recently saw a question posted on LinkedIn about whether purely reactive components produce noise like resistors do. This, of course, would be Johnson Noise, also known as Thermal Noise. I do not recall any mention of such noise in reactive compone</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: Do Pure Reactances Produce Noise?</title><link>https://community.element14.com/members-area/personalblogs/b/blog/posts/do-pure-reactances-produce-noise</link><pubDate>Sun, 10 May 2015 20:13:26 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:d587dd21-9c57-42d6-934d-f4def7079ece</guid><dc:creator>DAB</dc:creator><slash:comments>1</slash:comments><description>&lt;p&gt;You might want to get a copy of my book.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;I have determined that all mass/energy transfer at the atomic level is done via photons.&lt;/p&gt;&lt;p&gt;Since photons exist in a tremendous range of mass and charge, different photons cause each atom to react differently as they try to re-establish balance in the electron cloud after they have absorbed or emitted a photon.&amp;nbsp; Those subtle variations can produce the reactance noise that you are referring to.&amp;nbsp; Different types of photons change the frequency components of&amp;nbsp; the charge flow during operation.&amp;nbsp; By default we call it noise, but I think I am the only person to realize that that noise is a natural part of the charge flow caused by the many different types of photons that transfer the mass/energy during circuit operation.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;Different types of materials react differently to charge/mass flow.&amp;nbsp; So you indeed get different responses depending upon the primary frequencies that you want to work at and the specific atoms in the material you are using in your components.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;As I am working through my redefinition of the atomic model, I see many such issues being resolved as I learn how the atoms really bond together.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;Hopefully I can capture these issues in my next book.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;p&gt;DAB&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=20777&amp;AppID=293&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Do Pure Reactances Produce Noise?</title><link>https://community.element14.com/members-area/personalblogs/b/blog/posts/do-pure-reactances-produce-noise</link><pubDate>Sun, 10 May 2015 15:01:51 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:d587dd21-9c57-42d6-934d-f4def7079ece</guid><dc:creator>jw0752</dc:creator><slash:comments>0</slash:comments><description>&lt;p&gt;Since Reactances are not linear in their response to a voltage, is not he dU/dt itself a form of noise? The next level of course is to ask if there is a second derivative d/dt (dU/dt) of this change in energy stored which would more appropriately be called noise. I am not sure we have to go as far as quantum effects to hypothesize this as imperfections in the materials used and the tolerances of the construction would most certainly introduce some form of second derivative fluctuation. The effect is probably small compared to the Johnson Noise. We are also straddling the real and the theoretical world in this discussion since we are talking about pure reactance but not pure materials and construction. Fun to do the thought experiments though.&lt;/p&gt;&lt;p&gt;John&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=20777&amp;AppID=293&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item><item><title>RE: Do Pure Reactances Produce Noise?</title><link>https://community.element14.com/members-area/personalblogs/b/blog/posts/do-pure-reactances-produce-noise</link><pubDate>Sun, 10 May 2015 11:12:57 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:d587dd21-9c57-42d6-934d-f4def7079ece</guid><dc:creator>clem57</dc:creator><slash:comments>0</slash:comments><description>&lt;p&gt;It has been a long long ago since my chemistry, but I do remember the valence of atoms. when electron get excited, the valence may change causing a flow. But this occurs on a low level. When you get to quantum level all kinds of strange things will happen and chemistry is one of these that gets tossed out the window. Till the two are explained, we have a gap of knowledge.&lt;/p&gt;&lt;p&gt;Clem&lt;/p&gt;&lt;img src="https://community.element14.com/aggbug?PostID=20777&amp;AppID=293&amp;AppType=Weblog&amp;ContentType=0" width="1" height="1"&gt;</description></item></channel></rss>