Outside a room there are three light switches. one switch is connected to the only light bulb inside the room. each of these three switched can be either "on" or "off". all start in the "off" position
Outside a room there are three light switches. one switch is connected to the only light bulb inside the room. each of these three switched can be either "on" or "off". all start in the "off" position. you are allowed to set each switch the way you want it and then enter the room (note: you can enter the room only once) your task is to then determine which switch controls the bulb. how would you do this?
Electrical Supplies - Leviton
Answers & Comments
While standing at the switches (outside the room) turn each switch on until the light is activated. You need not be in the room to see the light operating.