Posted by Marc Martin on
URL: https://www.es-forum.com/Ferrite-Chokes-and-Noise-tp4027907p4027912.html

You can see a ferrite on a mouse cable, computer display cable, USB cable, etc., because there will be a cylindrical "bulge" around a short section of the cable.  If it's just a cable (constant diameter everywhere, with no "bulging"), then there is no ferrite.

Marc