3 bulbs 3 switches, only 1 bulb can be ON at a time

Today I will explain, if there are 3 bulbs & 3 switches, then at a time, only 1 bulb can be switched ON, more than 1 can not be switched ON, there is a interlocking in this, How is it possible? this is set up, these are 3 LED bulbs,

these are 3 switches, and this is incomer supply, single phase red color, and black color wire, this is line wire, this is neutral wire, these 2 are put as a partition, such that this light, and this light are not getting mixed up, these 3 are toggle switches, double

pole double throw type, but we can use normal switch also, but then we have, to join these 2 switches, these switches are 2 way switch, you can join them using, some plastic sheet, and some adhesive, such that both becomes ON at a time, like this & like this,

you can use this, or you can use this, this is single switch, all these connections, are in a single switch, Now I will show the operation of this, this bulb, can be switched ON using this switch, and switch OFF also, this bulb, can be switched ON using this

switch, and can be switched OFF also, this bulb, can be switched ON using this switch, and can be switched OFF also, Now suppose this bulb is ON, now I try to make these bulbs ON, so they will not become ON, this also will become OFF, you see,

I will try to to switch ON this, this has become OFF also, so both at a time ON means, no bulb will be ON, now I will try to switch ON this, so this will not become ON, this also will become OFF, see, now suppose this is ON,

and I try to switch ON this, so this also will become OFF, similarly, if this is ON, you want to switch ON this, it will not become ON, but both will become OFF, now suppose this is ON, I try to switch ON this, this also become OFF, this

also becomes OFF, similarly, if I try to switch ON this, this will not become ON, this bulb also will become OFF, see, so if we keep two switches ON, no bulb will be ON, at a time only 1 switch should be ON, this is useful, when we want

to switch ON only 1 bulb, there may be a big area, we want to light up only one area, and we want to avoid, other 2 bulbs becoming ON, then this logic is very helpful, now I will show, this box from the backside, I will show you all

the connections, afterward, I will show you circuit diagram also, and explain the circuit diagram also, these are connections at back side, this is toggle switch, this has 6 terminals, 1, 2, 3, 4, 5, 6, here also 6, so this one equivalent to these 2 switches, this is double

pole double throw, these are 2 way switches, 2 numbers, again here, I have done connections, between terminals, with different color of wire, In the circuit diagram, I have tried to maintain the color coding, of the wire connections, Now I will show these connection, from close You can

see all the connections, this is circuit diagram, this is incomer supply, these are 3 bulbs, this is one switch, this is 2nd switch, this is 3rd switch, this switch has 1, 2, 3, 4, 5, 6 terminals, now this switch consist of 2 switches, one this, one this, both

are OFF at present, when I want to make it ON, I will switch like this, so both will look like ON, this is for explanation purpose, what happens?, when this toggle switch is OFF, or at UP position, this is UP position, that time bottom 2 terminals will be

ON, like this, this is the arrangement inside the switch, as I have tested using multimeter, now I will explain the operation of this, 1st I will switch ON this bulb, I will move these 2 upward, because to switch ON, I have to press this button down, so both

will go upside, so this bulb should become ON, let us see the connections, how circuit is completing, like this, you notice, the circuit completes, In this, this one switch is coming is series, and these 2 are also coming in series, see again, this one, then, this one also,

then circuit is completing, so either this one, or this one, I switch ON, this will move upside, or this will move upward, so this connection will be broken, now I will switch ON this, so this should become OFF, let us see the connections, see, here no connection, so

it has become OFF, similarly, in place of this, if I switch ON this, then this connection will break the current, again, this will not get supply, so it will become OFF, like that, all 3 will work, each bulb is having 3 switches in series, one switch is it's

own switch, and 2 other switches also, today we will close now,

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