A cable used to send data has an attenuation where power drops by a factor of 10 every 10 km. If the input power is 1 W, and the receiver can detect signals with a power of 10-4 W or more, what is the longest cable that can be used without a regenerator?

Select:

100 km

40 km

10 000 km

10 km

Answer rating: 100% (QA)

Define x as the cable length in 10 km increments The power decreases ... View the full answer