[both bulbs] [a and c] [still have] [a closed path] [ terminal 1 ] [ and ] [ the positive terminal ] [ are connected ] [positive battery] [is seperated by] [a gap] [from] [terminal 2] [There is no difference] [between the two terminals.] [the switch] [has to be contained] [in the same path] [as the bulb] [and the battery] [there is] [a gap] [in terminal 1] [The battery uses] [the chemical reaction] [to create voltage] [a batter uses] [a chemical reaction] [to create voltage] [the battery alone] [is in] [a closed path] [ Because there is a gap in the circuit ] [ Because ] [ ] [ there is ] [ ] [ a gap ] [ ] [ in the circuit ] [ ] [ Bulbs A and B ] [ ] [ are not within ] [ ] [ the same path ] [ ] [ as bulb C ] [ ] [Because] [there was] [two negative connections] [bulb a is] [on] [a closed path] [with] [the battery] [the other terminals] [are connected] [to the positive terminal] [The bulb] [takes away] [the path] [There is no gap] [between] [the positive terminal] [and] [terminal 4] [Bulb] [a created] [a gap] [terminal 6] [is connected] [to the positive terminal] [of the battery] [the bulb] [is] [in a closed circuit] [ The circuit ] [ ] [ is not closed ] [ ] [ around the battery ] [ ] [the bulb] [is not contained] [in a closed path] [There is] [a gap] [in the circuit] [ Bulb B and bulb C ] [ ] [ are still on closed paths ] [ ] [ with the battery ] [ ] [Bulb A] [has] [a closed pathway] [bulbs a and c] [are not in] [the same closed path as bulb b] [ Only one terminal ] [ ] [ is involved ] [ ] [ in the circuit ] [ ] [there] [was closed paths] [between the battery] [the gap separates] [the positive battery terminal] [from terminal 2] [ bulb a ] [ , ] [ bulb b ] [ , and ] [ bulb c ] [ are contained in ] [ different closed paths ] [ ] [ If any bulb is out/ it affects the whole system/ and everything is blocked from the battery ] [it is not] [in the same path] [There will be] [a gap] [in the path] [Bulb B] [and] [C] [are still contained in a path] [with the battery] [ bulbs a ] [ ] [ and c ] [ ] [ are still contained ] [ ] [ in a closed path ] [ ] [ with the battery ] [ ] [Terminal one] [is not connected] [to the positive battery terminal] [bulb A] [and] [switch Z] [are in] [a closed path] [Terminal 5] [is connected to] [the positive battery terminal] [Terminal 6] [is connected to] [the positive battery terminal] [the red x] [means] [that the circuit] [is not safe] [both bulbs B and C] [are in the same path] [as bulb A] [if the electrical state is non-zero] [you can find the gap in the circuit] [The battery] [is contained in] [a closed circuit] [and] [there is] [nothing in] [its pathway] [A terminal is not connected] [to the positive battery terminal.] [there is] [a gap] [in the circuit] [the positive terminal] [is not separated] [by a gap] [from terminal 5] [You can find] [where] [there is] [a gap] [has to do something] [with] [a gap] [ Because ] [ ] [ the positive circuit has ] [ ] [ a voltage of 1.5 volts ] [ ] [ There is ] [ ] [ a chemical reaction ] [ ] [when the switch is] [the in a closed path] [with the bulb] [bulb b] [and] [c] [are] [in] [a closed path] [ There is ] [ ] [ a difference in ] [ ] [ electrical states ] [ ] [the bulb] [will not light] [bulb a][and][c][are contained][on][the same path][with][the battery] [ The path ] [ does not cl ] [The difference between] [the electrical states] [is 1.5 volts] [there is] [still] [a closed path] [a gap] [causes] [a lost connection] [the positive terminal] [and] [terminal 6] [are connected] [the positive terminal] [is connected to] [terminal 6] [Because] [there is no gap at terminal 1] [terminal 6] [is connected to] [the positive terminal] [ When the switch is ] [ ] [ in the same path ] [ ] [ as the bulb ] [ ] [ Bulbs A ] [ ] [ and ] [ ] [ C ] [ ] [ are ] [ ] [ in separate paths ] [ ] [bulb a and bulb b] [are still] [in a closed path with the battery] [The positive battery terminal] [was not separated] [by a gap] [from terminal 6] [A GAP] [WIL BE] [CREATED] [bulb a and c] [are contained] [in different paths] [with the battery] [The positive terminal] [is connected to] [terminal 4] [not contained] [in the same path] [bulb c] [does not create] [a gap in the path] [for bulb b and a] [becuase] [the other terminals are connected] [to the positive battery terminal] [because terminal one] [and] [the positive battery terminal] [are] [on] [a closed path] [ Battery ] [ ] [ will always have ] [ ] [ voltage ] [ ] [the terminals] [are not connected] [the positive battery terminal] [is connected to] [terminal 6] [bulb a] [was on] [a closed path] [Because terminal 4] [is connected to] [the negative terminal] [bulb c] [is in] [its own pathway] [the voltage] [is nearest] [the burnt out bulb] [ You needed both a battery ] [ ] [ and a blub ] [ ] [ with the same path ] [ , ] [ and the path must be closed ] [ Because the ] [ ] [ battery runs ] [ ] [ in a closed circuit ] [ ] [ If bulb B is damaged ] [ ] [ then the circuit is no longer closed ] [ ] [terminal 1, terminal 2] [and terminal 3] [are connected] [o the negative battery] [Because it didn] [""t cause] [a gap.] [ because ] [ ] [ there is a gap ] [ ] [ between terminal 1 ] [ ] [ and terminal 6 ] [ ] [Because bulbs b and c are on a closed path] [with the battery] [The switch] [determines] [whether the path is open or closed.] [the positive battery terminal] [is separated by] [a gap] [from terminal 4] [an incomplete circuit] [would not effect] [the the electrical state] [between the terminals] [terminals 4, 5, and 6] [are connected to] [the positive battery terminal] [The path] [it was on] [If the bulb is] [on the same closed path] [bulb a] [was still contained in] [a closed path] [with the battery.] [If one bulb is removed] [the others stop working] [Because all the terminals are connected to other terminals] [an open switch disrupts that.] [There is a gap] [between] [the two bulb terminals] [a short circuit] [has occurred] [there will be a gap at bulb b] [thus affecting] [the rest of the circuit] [ terminal 3 ] [ ] [ and ] [ ] [ the positie terminal ] [ ] [ are ] [ ] [ not connected ] [ ] [ The positive battery terminal ] [ ] [ was not seperated by ] [ ] [ a gap ] [ ] [ from terminal 4 ] [ ] [ Terminal 1 ] [ ] [ is connected to ] [ ] [ the negative terminal ] [ ] [A terminal] [is not connected] [to the positive battery terminal] [the positive terminal] [and terminal 2] [are separated by] [a gap] [there is not] [gap between] [the terminals] [ there is a gap ] [ ] [ between the positive battery terminal ] [ ] [ and terminal 4 ] [ ] [ The positive battery ] [ ] [ was not connected ] [ ] [ to terminal one ] [ ] [ Bulbs A and B ] [ ] [ will still be contained in ] [ ] [ a closed path ] [ ] [ to the battery ] [ ] [the two components] [are separated] [Because terminal 1] [is directly connected] [to terminal 4] [the positive battery terminal] [and terminal 4] [are connected] [ Terminal 1 ] [ ] [ and ] [ ] [ terminal 2 ] [ ] [ are ] [ ] [ on ] [ ] [ the same side ] [ ] [not connected to] [positive battery] [The battery uses] [a chemical reaction] [to maintain] [the voltage] [Because] [the bulb does not have] [a closed path.] [there is] [a difference in] [electrical states] [ terminal ] [ is connected to ] [ positive terminal ] [ of ] [ the battery ] [Terminal 1] [is separated from] [the positive terminal] [ Battery is ] [ ] [ not contained ] [ ] [ in a closed path ] [ ] [terminal 1] [was connected to] [the positive battery terminal] [There] [are 2 paths] [in this diagram] [Because the switch] [was connected] [to the closed circuit] [ damaged bulb ] [ ] [ creates ] [ ] [ a gap ] [ ] [that the battery connection] [does not work] [because] [the terminals] [are not connected] [Terminal 5] [is connected to] [the positive battery terminal] [terminal 1] [was connected to] [the positive terminal] [There is a gap between] [terminal one and two] [and] [the positive battery terminal] [bulbs b and c] [are contained on] [the same path with] [the battery] [because there] [is no closed path] [to the battery] [terminal 1] [is not connected] [to the positive battery terminal] [the battery] [is not] [in a closed bath alone] [terminal 5] [is connected to] [postive terminal of the battery] [If x and z are closed] [then it will create] [a closed path] [positive terminal] [is separated] [from terminal 2] [the battery] [is not closed] [the bulb] [is] [there is not] [a gap] [in the connection] [if a bulb is in] [a closed circuit with a battery and a switch] [the switch will affect the bulb.] [bulbs b] [and c] [were contained] [in] [a closed path] [with the battery] [Because] [neither components] [are in closed paths] [you can see] [where the gap is] [if there is a gap in the circuit] [there] [the bulb will not light up] [Bulb A] [and Bulb B] [and the battery] [are in] [a closed path] [That there is] [a gap] [ if the switch and bulb are contained in the same path ] [ , ] [ the switch will affect the bulb ] [ ] [Voltage is] [the difference between] [a positive and negative end] [on a battery.] [the path] [passes] [the energy] [through] [the switch] [that the bulb terminal] [and battery terminal are on the same side] [of a disconnected circut] [Because the battery] [is not] [in a closed path.] [switch x] [is in] [the closed path] [with bulb a] [There was] [a closed circuit] [because switch z is in bulb c] [s closed path] [Bulb A] [was still] [in] [a closed path] [ Because ] [ ] [ there is ] [ ] [ a gap ] [ ] [ due to ] [ ] [ a damaged bulb ] [ ] [Bulb A] [was still] [in a closed path] [with the battery] [The battery and light bulb] [are] [not contained] [in] [a close path] [and the circut] [is closed] [ becuase bulb C is on ] [ ] [ it's own pathway ] [ ] [if bulb A burns out] [then bulbs B and C will no longer be in] [a closed path] [Terminal 1] [is not connected] [to the positive terminal] [Because] [the battery] [is not] [in a closed circuit] [the terminal] [it] [is connected to] [is not working] [ There must be a closed path ] [ ] [ and ] [ ] [ a battery ] [ ] [terminal] [is connected to] [terminal 6] [because bulb a] [is in] [a closed circuit with] [the battery] [and switch x] [If the path is not closed] [the switch will not affect] [the bbulb] [bulb b] [and c] [are on] [a closed path] [to the battery] [since a] [a gap does not affect] [the voltage of] [a battery] [Because] [there is] [a light bulb] [the bulb] [will be burned out] [because] [the terminals] [Because the positive batter terminal] [and terminal 6] [were connected] [ Because ] [ ] [ the circuit ] [ ] [ is complete ] [ ] [Bulbs B and C] [will] [still be on closed paths] [with the battery] [the bulb] [is contained in] [an closed circuit] [THE] [ARE] [ON] [THE SAME PATH] [ Bulb a ] [ ] [ and ] [ ] [ switch Y ] [ ] [ are not in the same path ] [ ] [ A chemical reaction inside the battery ] [ ] [ makes ] [ ] [ the electrical states of ] [ ] [ the positive and negative terminals different ] [ ] [ at all times ] [ ] [becasue the terminals 4,5, and 6] [are connected] [to the positive terminal] [of the battery] [switch Y] [does not effect] [bulb A] [bulb c] [creates] [a gap] [Bulb C and] [the battery] [are not contained] [in a closed pathway] [the two terminals] [will both be] [0] [bulb b] [is not in] [the same path with] [bulbs a and c] [ The electrical state ] [ ] [ is interferred ] [ ] [ with ] [ ] [Because the battery and the bulb are not in a closed path.] [ because ] [ ] [ by measuring voltage ] [ ] [ you find the gap ] [ ] [ where there's a difference ] [ ] [ in electrical states ] [ ] [again,] [bulbs] [a and b] [will be] [contained] [on] [a closed path] [bulbs b and c] [are contained] [in the same path] [with the battery] [There is] [a gap] [in the path.] [bulb a] [is] [in] [a closed path] [with] [a battery] [ Bulb A ] [ ] [ and ] [ ] [ bulb C ] [ ] [ affect ] [ ] [ each other ] [ ] [switch z] [is contained] [in a closed path] [the bulb terminal] [and] [the negative battery terminal] [are separated by] [a gap] [Bulb A and C] [are still] [in a closed path] [with the battery] [if switch and bulb are contained] [in the same closed path] [ there is a gap ] [ ] [ between ] [ ] [ the positive battery connection ] [ ] [ and ] [ ] [ the bulb terminal ] [ ] [ Bulb A ] [ ] [ is not on ] [ ] [ the same path ] [ ] [ that Bulb B ] [ ] [ and bulb C ] [ ] [ are ] [ ] [it runs] [on] [a different current] [terminal 6] [is connected to] [the difference] [the batteries terminals] [are not connected] [because] [if there is a voltage] [that means] [there is a gap] [Find where] [there are different electrical states] [circuit 2] [is connected to] [the battery] [the gap] [in the circuit] [causes] [the circuit] [to be] [an open circuit] [there is a gap] [in the circuit] [the path] [has to be closed] [for the bulb] [to light up] [There is no gap] [so there is no difference in voltage] [ Voltage ] [ ] [ is ] [ ] [ the difference between ] [ ] [ a positive and negative end on ] [ ] [ the battery ] [ ] [bulb] [had] [a short circuit] [Bulb A and bulb C] [are in] [a closed path with the battery] [ Terminals 4, 5, and 6 ] [ ] [ are only connected to ] [ ] [ the positive battery terminal ] [ ] [a terminal is connected to] [the positive battery terminal] [because the terminals] [are] [in the same state] [because switch y isn""t included] [in bulb A""s closed path] [the negative battery terminal] [is seperated by] [a gap] [from terminal 6] [that the bulb terminal] [is only connected] [to one of the battery terminals] [there] [was] [a negative gap] [terminal is connected to] [postive end of] [battery] [terminal 1] [is connected to] [the 1.5 volt battery] [The path] [must be] [closed] [ Bulbs B and C ] [ ] [ are contained ] [ ] [ on the same path ] [ ] [ with the battery ] [ ] [a terminal] [is connected] [to the positive terminal of the battery] [because a and b are in series] [and a and c are in parallel] [a terminal] [is connected to] [the positive terminal] [of the battery] [the bulb] [is] [not contained in] [the path] [because] [positive charge is before gap] [Because it] [is not] [on the same path] [Seperate paths] [connected to] [the battery] [ A red X ] [ ] [ means ] [ ] [ the battery is in a short circuit ] [ ] [The battery] [is not closed] [in a closed path] [terminal is connected] [to the battery] [ Bulb A ] [ and ] [ Bulb C ] [ are not contained in ] [ the same closed path ] [ bulbs A ] [ and ] [ C ] [ are not on the same closed path ] [ bulb ] [ , ] [ battery, and switch ] [ , ] [ are in closed path ] [the paths of the circuit] [are no longer] [complete] [there is] [no closed path] [in circuit 4] [The battery] [keeps] [a chemical reaction reaction] [There is always] [a difference] [in voltage] [between two battery terminals.] [terminal 1] [is connected to] [terminal 4] [Bulb A and B] [will still be] [in a contained path] [bulb a] [is] [in a closed circuit] [with the battery] [without the y switch] [different paths] [with] [the battery] [The electrical state at the terminal] [matches] [the battery's electrical state] [ Circuit 2 ] [ ] [ is not ] [ ] [ a short circuit ] [ because ] [ the battery ] [ ] [ is not ] [ ] [ in a closed path ] [ with ] [ itself ] [ ] [Bulb A] [is] [on] [a closed circut path] [Bulb B and bulb C] [are contained] [in different paths] [with the battery] [the battery always has a voltage] [because] [there is a positive terminal] [and] [there is a negative terminal] [gap between 3] [and] [positive battery] [because bulbs A and C are contained] [in different paths] [with the battery] [because of] [the gap] [at bulb b] [because] [bulb c was in] [an open path] [It] [is] [not a closed path] [because switch y is not conatined in the closed path of bulb a] [and the battery] [ A terminal is not connected ] [ ] [ to the negative battery terminal ] [ ] [bulb B] [and C] [both] [still] [are on] [a closed path] [with the battery] [terminal 1] [and] [terminal 6] [are separated] [by] [a gap] [because] [the battery is] [in a closed path] [complete path] [including] [a battery] [and] [a bulb] [bulbs b and c] [create] [a gap] [in the path] [the positive battery terminal] [and terminal 5] [are connected] [the the] [bulb terminal] [disconnected] [from] [the battery terminal] [ the battery ] [ ] [ is contained in ] [ ] [ the circuit ] [ and ] [ the light bulb ] [ ] [ is not ] [because] [the two ends] [of the battery] [do not connect] [to one another] [When a switch is open] [the circuit is no longer complete] [if both bulbs] [are contained within] [a closed path] [The bulb] [is] [in a closed circuit] [and] [the battery] [exists] [in that circuit] [the closed path] [is connected to] [the light bulb] [ the electrical states ] [ ] [ between the terminals ] [ ] [ is the same ] [ , ] [ resulting in 0 ] [bulb b] [and] [bulb c] [are contained within] [a closed path] [circuit 5] [is in] [a closed path] [terminal 6] [is connected to] [terminal 1] [If bulb B is damaged] [there is a gap] [in the circuit] [ bulb a is ] [ ] [ in ] [ ] [ a complete circuit ] [ ] [ with ] [ ] [ the battery ] [ ] [ when ] [ ] [ switch z is ] [ ] [ closed ] [ ] [bulb a is] [on a closed path] [with the battery] [Because those terminals] [are connected] [to the positive terminal] [of the battery.] [Not contained] [in a closed path] [terminal connected] [to positive charge] [because voltage measures] [the difference] [between two points] [Bulbs a and c] [are] [in separate paths] [terminal 6] [is connected to] [postive terminal of battery] [a terminal] [is connected to] [the negative battery terminal] [Switch Z] [is in] [the same path] [as bulb A] [There] [will be] [a gap] [because each bulb] [has] [its own complete path] [bulbs b] [and] [c] [have] [separate paths] [within] [the closed circuit] [ A terminal ] [ ] [ is connected to ] [ ] [ a bulb ] [ ] [the positive battery terminal] [has no gaps] [from terminal 4] [when a switch and bulb] [are whithin] [a closed path] [because the path] [is short] [Bulb A] [will no longer be completing] [the circuts] [Bulb C] [will create] [a gap] [in the path] [bulb a] [was contained on] [a closed path] [with] [the battery] [ Terminal 1 ] [ ] [ is connected to ] [ ] [ terminal 4 ] [ ] [Bulbs A and B] [are not on] [the same path] [as Bulb C.] [ Each circuit ] [ ] [ must have ] [ ] [ a connection ] [ ] [A switch contained in a closed path] [with a bulb and a battery] [will affect the bulb] [Voltage] [is] [the difference between a positive and negative terminal on the battery] [bulbs b and c] [were] [in a closed circuit with the battery.] [can complete the path] [by having z] [be closed] [A switch will affect a bulb] [it the bulb and the switch are in the path] [as the battery] [the positive battery terminal] [is not connected] [ Bulb A and bulb C ] [ ] [ are still on ] [ ] [ a closed path ] [ ] [ that contains ] [ ] [ the battery ] [ ] [Bulbs A and C] [will still be on] [their own completed circuts] [The damaged bulb B] [has left] [a gap] [in the path] [so] [the charge] [can not reach] [it] [the terminal] [is separated from] [the battery terminal] [a terminal] [is connected to] [another terminal] [bulb A] [is connected to] [switch Z] [there is a closed path] [with switch z] [that contains bulb a] [and the battery] [Terminal 4, terminal 5, and terminal 6] [are connected to] [the positive terminal] [Circuit 2] [is not] [a short circuit] [because] [the battery] [is not connected] [to itself] [ Because terminal 1 ] [ ] [ is separated ] [ ] [ from the positive battery terminal ] [ ] [bulb a and bulb c] [are contained] [in different paths] [with the bttery.] [Because bulb a] [is in] [a closed path] [with the battery.] [the positive terminal] [is connected] [to the bulb] [because bulb a is in a closed path] [and bulb c is in a closed path] [The positive terminal] [has 1.5 V] [because of] [the chemical] [in] [the battery] [ Both components ] [ ] [ need to be ] [ ] [ in closed paths ] [ ] [bulb a] [and] [bulb c] [are wired] [in parallel] [Bulb terminals 3] [and 4] [the other bulb] [will not light] [because] [there was] [a gap] [in] [the terminals] [if the switch is open] [in a path] [with the battery] [and bulb] [ 4 5 and 6/ are connected/ to the positive sid ] [a voltage reading of 0 volts] [indicates] [a gap in the circuit] [4 5] [and] [6] [are] [not connected] [to] [negative battery terminal] [bulbs] [a and b] [are] [still] [contained] [on a closed path] [with] [the battery] [ bulbs a ] [ ] [ b ] [ ] [ c ] [ are all in the same path ] [a and c] [are on] [the same closed path] [with the battery] [ if the switch is included in the bulb ] [ ] [ ""s closed path ] [ , ] [ then the switch being open ] [ ] [ will affect the bulb ] [because] [the outcome of the bulb] [will not affect each other] [not seperated] [by a gap] [ Because terminal 1 ] [ ] [ and the negative terminal ] [ ] [ are separated ] [ ] [ Because their ] [ ] [ is a gap between ] [ ] [ A and C ] [ ] [ now ] [ ] [Bulb A and bulb b] [are still contained] [in closed paths] [with the battery] [B and C] [are not in] [the same circuit] [as A] [ there terminals ] [ ] [ are separated ] [ ] [ by a gap ] [ ] [ when ] [ ] [ the voltage jumps ] [ ] [ from 0 to 1.5 ] [ ] [ bulbs ] [ ] [ a ] [ b ] [ and ] [ c ] [ are on ] [ ] [ a closed path ] [I think] [the red X means] [that this is dangerous] [and should never happen] [unless something is seriously wrong.] [because] [there was no gap] [from] [the positive terminal] [of] [the battery] [bulbs A and B] [are still connected to] [the closed path containing the battery] [if the switch and the bulb] [are in] [the same path] [bulb c] [and] [switch z] [are] [in] [the same closed path] [the bulb] [only has] [one terminal connected]