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RCDD-001 Exam - Question 9


A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is __________, where c is the velocity of light in free space.

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Correct Answer: C

A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is approximately 0.6 times the speed of light in free space. This falls within the typical range for such cables.

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waldo31
May 25, 2022

Typical values range from .56c to .74c for 100ohm balanced twisted pair cable.

CUB90
Nov 15, 2023

TDMM page 1-60 (Nominal Velocity of Propagation)