Which cable type uses two or more twisted copper conductors?

Which cable type uses two or more twisted copper conductors?

• A. Twisted pair cable
• B. Coaxial cable
• C. Fiber optic
• D. Shielded cable

Answer: (A)

Twisted pair cable uses two or more copper conductors that are twisted together. The twisting helps cancel out electromagnetic interference and reduce crosstalk because noise tends to affect both conductors similarly, so the differential signal can reject the noise. This copper, multi-conductor, twisted arrangement is what distinguishes twisted pair from other types. Coaxial cable has a single copper conductor with a surrounding shield; fiber optic uses glass or plastic to carry light; shielded cable refers to a shielding layer around conductors and isn’t defined by multiple twisted copper conductors.

Twisted pair cable uses two or more copper conductors that are twisted together. The twisting helps cancel out electromagnetic interference and reduce crosstalk because noise tends to affect both conductors similarly, so the differential signal can reject the noise. This copper, multi-conductor, twisted arrangement is what distinguishes twisted pair from other types. Coaxial cable has a single copper conductor with a surrounding shield; fiber optic uses glass or plastic to carry light; shielded cable refers to a shielding layer around conductors and isn’t defined by multiple twisted copper conductors.