Talking about matters concerning the connection of devices such as TVs, music and video players, and sound systems, RCA cables are quite common. It is very easy to mistake RCA with the coaxial cables. RCA is an abbreviation for Radio Corporation of America, which is the name of the company where the standard was developed, which is a paired connector that is typically used for connecting audio and video equipment.
While coaxial cable, on the other hand, is just a type of cable which has a simple structure. Coaxial basically means the same axis, and that is how the cable is also arranged. It actually comprises of an inner conductor, which is surrounded by an insulator that is then wrapped in a secondary conductor, after then a final insulator. A cross-section would do the job of revealing a set of concentric circles alongside with alternating conductor and the insulator.