Why are the wires in a twisted-pair cable twisted around each other?

Options

  • A. To increase electrical interference
  • B. To reduce electromagnetic interference and crosstalk
  • C. To convert electrical signals into light signals
  • D. To increase cable diameter
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. To reduce electromagnetic interference and crosstalk

Detailed Explanation

Correct Answer: To reduce electromagnetic interference and crosstalk

  • Twisting helps cancel out induced electromagnetic noise.
  • It reduces interference between adjacent wire pairs.
  • Twisted-pair cables are widely used in Ethernet LAN networks.
  • UTP and STP are two major types.