Which is NOT an advantage of fiber optics over electrical systems?

The correct answer highlights that increased signal interference is not an advantage of fiber optics over electrical systems. In fact, one of the primary benefits of using fiber optic technology is its immunity to electrical noise, which makes it superior in environments where electromagnetic interference is common.

Fiber optics also offer advantages in reduced size and weight compared to traditional electrical wiring, which allows for more efficient use of space and can reduce the overall weight of the system. Additionally, fiber optics are resistant to many environmental factors that can affect electrical systems, such as moisture and temperature fluctuations, thus providing better environmental protection.

In contrast, electric systems are more susceptible to signal interference, which can degrade performance. This includes noise from nearby electrical equipment, which can distort signals transmitted through traditional copper wiring. Therefore, increased signal interference cannot be considered an advantage of fiber optics; rather, it is a distinct disadvantage of conventional electrical systems.