Which type of electrical cable consists of an inner conductor surrounded by a concentric conducting shield?

Coaxial cable is specifically designed with an inner conductor that is surrounded by a concentric conducting shield. This configuration allows it to transmit data with reduced signal loss and resistance to electromagnetic interference, making it ideal for applications like cable television and internet connections. The central conductor typically carries the signal, while the outer shield serves as a ground and protects the inner conductor, thus enhancing signal integrity. This design is a distinguishing feature of coaxial cables, setting them apart from other types of cables, such as fiber and twisted pair cables, which have different structures and shielding mechanisms.