Quick answer
Most analog CCTV cameras use a coaxial cable, commonly an RG-59 '3+1' type — a coaxial core for the video signal plus three power cores in one cable, so a single run carries both video and power to the camera.
Good CCTV cable uses annealed tinned-copper conductors and proper shielding for clear, distortion-free video over distance — see what a coaxial cable is. (IP cameras instead use LAN cable.)
APAR's Tarang Shakti CCTV cable is a purpose-built RG-59 3+1 surveillance cable.