Three light bulbs in room A are connected independently to switches in room B. By one visit to room A from B determine the relationships. How?

Install the three switches and go with it's wiring to visit room a and install the lamps to make it in one visit

If these are ordinary light bulbs ,,,  the puzzle can be solved by THERMAL DIFFERENCE observation

1. Swith on two (2) Switches for a short while and leave the3rd one off
2. Switch off one of these two switches
3. Write down which switch is still on, the one for a which was switched on and off,   and the one which was not switich on at all
4. Go to the next room and touch the three bulubs
   1. The cold one is connected to the switch which was off all the time
   2. The warm one is connected to the switch which was put on for a short while
   3. The hot one is connected to the switch which is still on

I hope this answers your question !

Vision and Foresight connects them all.

My doll

connection ????

sorry i cannot get your point, i think this must a probablity theory to impement

I agree with the answer"s,Mr fredy

I agree with Mohammed Thiab's answer.

Agree with Mr: Mohammed thiab