In multi core cables, why the cores of the cable are in spiral shape instead of being straight.

 

Are you thinking of coiled telephone handset cable?

 

In multi core cables, why the cores of the cable are in spiral shape instead of being straight.

Among the reasons for stranding cables is the improvement in flexibility and the greater tolerance of the cable to flex without incurring damage to the cable's electrical integrity.

hgmjr

 

Hello,

A lot of information on COAX cables can be found in the links if this page :
http://www.educypedia.be/electronics/cablingrf.htm

Other cable types are described on these pages :
Cables & connectors: Audio and video cabling Computer cabling Fibers Physical connections Computer-networking RF cables Theoretical operation

Greetings,
Bertus