What does velocity of propagation describe in copper cables?

Prepare for the BICSI Copper Test with our comprehensive quiz. Utilize flashcards and multiple-choice questions to enhance learning with hints and explanations. Ace your exam with confidence!

Multiple Choice

What does velocity of propagation describe in copper cables?

Velocity of propagation describes how fast an electrical signal travels through the cable, expressed as a fraction or percentage of the speed of light. It’s determined by the cable’s dielectric material and construction, so copper cabling typically has a velocity factor around 0.66 to 0.7, meaning signals move at about two-thirds of light speed. This speed lets you estimate propagation delay along a run (for example, a 100 m length would add roughly 0.5 microseconds at a 0.66c factor). It’s not about data rate (which depends on bandwidth and encoding), shielding effectiveness, or maximum voltage.

Velocity of propagation describes how fast an electrical signal travels through the cable, expressed as a fraction or percentage of the speed of light. It’s determined by the cable’s dielectric material and construction, so copper cabling typically has a velocity factor around 0.66 to 0.7, meaning signals move at about two-thirds of light speed. This speed lets you estimate propagation delay along a run (for example, a 100 m length would add roughly 0.5 microseconds at a 0.66c factor). It’s not about data rate (which depends on bandwidth and encoding), shielding effectiveness, or maximum voltage.

More practice questions