I am wondering what is the relation between line distance and the amount of data transmitted on that line. I know only the basic of computer science. Let's say I want to calculate the time it takes for 100 GB to transfer over a line with the speed of 100MBps. If I just divide them, I will get 1000 seconds but in my online class, the lecturer said the time depends on the line distance. Since it is an introductory course, he doesn't explain anymore. So my question is, how is it relevant and why? I know the simple answer should be the resistance of the line increase as it got longer but does the resistance affect on the needed time significantly? How could I calculate the needed time with distance?
I know the simple answer should be the resistance of the line increase as it got longer but does the resistance affect on the needed time significantly?
but this is not about the resistance of the line.
Consider again the statement
the lecturer said the time depends on the line distance
So the question is how long it takes to transfer/communicate $X$ amount of data (100 Gbit, let's say) if the line speed is 100 MBit/s). You think it may be just 1000 s (amount of data divided by line speed).
But the point about the line distance is that it takes a finite amount of time for the transmission to go through the line. This is called latency. For example, if it takes 10 s to go through the line, then the answer is 1000+10s = 1010s.
Knowing both the data rate (line speed) and latency (line distance), allows you to answer the question of how long it takes.