Question

the outer cover of coaxial cable??​

Answer 1

Coaxial cable has a central insulated conductor which may be a solid wire or stranded. It is then enclosed in a conducting layer which is usually a copper or aluminum mesh or sometimes with a solid metal sleeve. It is then covered by an outer insulator called a jacket.

Answer 2

Answer:

Outer plastic sheath; Woven copper shield; Inner dielectric insulator; Copper core. Coaxial cable, or coax