When we use LAN wire of length about 200m for internet connection.is there a loss in internet signal occurs?

Maybe. The standards that govern LAN cabling specify that the connecting cable plus patch cords that make up a channel must be no longer than 100 meters. Using cable that is 200m in length will mean that the signal degrades due to increased attenuation and crosstalk between the pairs inside the cable, which may cause loss of Ethernet connectivity. However, there is so much redundancy in Ethernet data packets that it's possible that the system will work, though I would expect severely degraded performance.

YOU need to at least one repeater in that path... it can effectively be a low cost hub, but as ebaines correctly states... if it works at all its going to work like crap due to a number of reasons, latency, corrupted packets, retransmissions and packet collisions. Many reults of crosstalk and attenuation.

And even with one repeater... you are still going to have to have vey high grade cabling to push it even 100 feet reliably. Expect more problems with Cat5 cable than if you run Cat6e cable.

Ethernet cabling limitations are 100m maximum (328 feet).

Either you need to use a single mode fiber cable or have a repeater/hub/switch in the middle, as cat5, 53 and 6 all standards have a limitation of 100m. I wouldn't do it any other way than a fiber connection.

I second the fiber connection as the correct answer. Copper cabling should not be anywhere near 200m for a reliable connection.