In telecommunications, what advantage do fiber cables offer over copper cables in terms of electromagnetic interference?

Fiber cables offer a significant advantage over copper cables when it comes to electromagnetic interference due to their construction and operating principles. Fiber optic cables transmit data using light rather than electrical signals, which means they are inherently immune to electromagnetic interference that can affect copper cables. This immunity allows fiber optics to maintain signal integrity over longer distances and in environments with high levels of electronic noise or interference, such as near radio towers or heavy industrial equipment.

The structure of fiber cables also provides added advantages; they can operate across various environments without experiencing signal degradation caused by external electromagnetic fields. This characteristic of being less affected by interference makes fiber optics the preferred choice in settings where high data transmission reliability is crucial, such as telecommunications, internet backbone connections, and data center interlinks.

Thus, the correct choice highlights that fiber cables have a reduced susceptibility to electromagnetic interference compared to copper cables, which is a fundamental reason for their growing adoption in communication infrastructures.