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University of California - Davis

Physics

PHY 7B

Thomas Weideman

Winter

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Physics 9C Discussion 3Winter Quarter 2013IEnergy and CapacitancePhysics 9C Discussion 3Winter Quarter 2013Should it be difcult to push a dielectric between the two plates of a parallelplate capacitor Physics 9C Discussion 5on which the free charge is xedit is charged then disconnected from a voltage source or IEnergy and Capacitancedifcult to pull it outArgue in terms of what happens to the potential energy density change Should it be difcult to push a dielectric between the two plates of a parallelplate capacitor Physics 9C Discussion 3Winter Quarter 2013in the electric eld for this process and how that relates to the work you need to doPhysics 9C Discussion 5on which the free charge is xedit is charged then disconnected from a voltage source or IResistanceResistivitydifcult to pull it outArgue in terms of what happens to the potential energy density change IIResistanceYou are given two identical conducting wires these are not idealized conductorsthey exhibit in the electric eld for this process and how that relates to the work you need to doIEnergy and CapacitanceYou are given two identical conducting wires these are not idealized conductorsthey IResistanceResistivityPhysics 9C Discussion 3Winter Quarter 2013resistivityYou can connect them to make a single conducting wire in two ways soldering them exhibit resistivityYou can connect them to make a single conducting wire in two ways IIResistanceShould it be difcult to push a dielectric between the two plates of a parallelplate capacitor together endtoend or winding them around each otherYou are given two identical conducting wires these are not idealized conductorsthey exhibit soldering them together endtoend or winding them around each otherYou are given two identical conducting wires these are not idealized conductorsthey Physics 9C Discussion 5on which the free charge is xedit is charged then disconnected from a voltage source or resistivityYou can connect them to make a single conducting wire in two ways soldering them IEnergy and CapacitanceaWhich of these ways of connecting the wires represents connecting them in series and aWhich of these ways of connecting the wires represents connecting them in series and which is exhibit resistivityYou can connect them to make a single conducting wire in two ways difcult to pull it outArgue in terms of what happens to the potential energy density change which is connecting them in parallelExplain your reasoningtogether endtoend or winding them around each othersoldering them together endtoend or winding them around each otherconnecting them in parallelExplain your reasoningShould it be difcult to push a dielectric between the two plates of a parallelplate capacitor in the electric eld for this process and how that relates to the work you need to dobUsing the relationship of the resistance to the resistivityaWhich of these ways of connecting the wires represents connecting them in series and aWhich of these ways of connecting the wires represents connecting them in series and which is Physics 9C Discussion 5on which the free charge is xedit is charged then disconnected from a voltage source or bUsing the relationship of the resistance to the resistivityIResistanceResistivitywhich is connecting them in parallelExplain your reasoningLconnecting them in parallelExplain your reasoningRdifcult to pull it outArgue in terms of what happens to the potential energy density change LIIResistanceAbUsing the relationship of the resistance to the resistivityRYou are given two identical conducting wires these are not idealized conductorsthey exhibit bUsing the relationship of the resistance to the resistivityin the electric eld for this process and how that relates to the work you need to doAconrm the equivalent resistance relations for identical resistors connected in series and LYou are given two identical conducting wires these are not idealized conductorsthey IResistanceResistivityRLparallelresistivityYou can connect them to make a single conducting wire in two ways soldering them conrm the equivalent resistance relations for identical resistors connected in series and parallelARexhibit resistivityYou can connect them to make a single conducting wire in two ways IIResistanceAconrm the equivalent resistance relations for identical resistors connected in series and IIITransmission of Energytogether endtoend or winding them around each otherYou are given two identical conducting wires these are not idealized conductorsthey exhibit soldering them together endtoend or winding them around each otherIITransmission of Energyparallelconrm the equivalent resistance relations for identical resistors connected in series and parallelYou are given two identical conducting wires these are not idealized conductorsthey In the diagram below energy is transmitted from the source of the greater emf 1 to the resistivityYou can connect them to make a single conducting wire in two ways soldering them In the diagram below energy is transmitted from the source of the greater emf 1 to the source of aWhich of these ways of connecting the wires represents connecting them in series and source of lesser emf 2 with some dissipated by the resistance in betweenaWhich of these ways of connecting the wires represents connecting them in series and which is exhibit resistivityYou can connect them to make a single conducting wire in two ways IIITransmission of EnergyIITransmission of Energylesser emf 2 with some dissipated by the resistance in betweenwhich is connecting them in parallelExplain your reasoningtogether endtoend or winding them around each othersoldering them together endtoend or winding them around each otherIn the diagram below energy is transmitted from the source of the greater emf 1 to the connecting them in parallelExplain your reasoningIn the diagram below energy is transmitted from the source of the greater emf 1 to the source of source of lesser emf 2 with some dissipated by the resistance in betweenIbUsing the relationship of the resistance to the resistivityaWhich of these ways of connecting the wires represents connecting them in series and lesser emf 2 with some dissipated by the resistance in betweenaWhich of these ways of connecting the wires represents connecting them in series and which is bUsing the relationship of the resistance to the resistivitywhich is connecting them in parallelExplain your reasoningLIconnecting them in parallelExplain your reasoningRLAbUsing the relationship of the resistance to the resistivityRbUsing the relationship of the resistance to the resistivity12Physics 9C Discussion 3Winter Quarter 2013RAconrm the equivalent resistance relations for identical resistors connected in series and LRLparallelconrm the equivalent resistance relations for identical resistors connected in series and parallelAIEnergy and Capacitance12RRShould it be difcult to push a dielectric between the two plates of a parallelplate capacitor Aconrm the equivalent resistance relations for identical resistors connected in series and Suppose we can adjust the emfs to be however large we like in the real world we do this IIITransmission of EnergySuppose we can adjust the emfs to be however large we like in the real world we do this with Physics 9C Discussion 5on which the free charge is xedit is charged then disconnected from a voltage source or IITransmission of Energywith devices known as transformers which we will talk about later in the courseFurther paralleldifcult to pull it outArgue in terms of what happens to the potential energy density change conrm the equivalent resistance relations for identical resistors connected in series and paralleldevices known as transformers which we may talk about later in the courseFurther suppose that In the diagram below energy is transmitted from the source of the greater emf 1 to the suppose that we would like to transfer energy as fast as possible ie we want the power in the electric eld for this process and how that relates to the work you need to doSuppose we can adjust the emfs to be however large we like in the real world we do this we would like to transfer energy as fast as possible ie we want the power supplied by 1 and In the diagram below energy is transmitted from the source of the greater emf 1 to the source of supplied by 1 and accepted by 2 to be as large as we can make it but also we would like Suppose we can adjust the emfs to be however large we like in the real world we do this with IResistanceResistivitysource of lesser emf 2 with some dissipated by the resistance in betweenwith devices known as transformers which we will talk about later in the courseFurther IIITransmission of Energyto lose as little energy as possible through the resistoraccepted by 2 to be as large as we can make it but also we would like to lose as little energy as devices known as transformers which we may talk about later in the courseFurther suppose that IIResistanceIITransmission of Energysuppose that we would like to transfer energy as fast as possible ie we want the power lesser emf 2 with some dissipated by the resistance in betweenYou are given two identical conducting wires these are not idealized conductorsthey exhibit Physics 9C Discussion 3Winter Quarter 2013aWrite down the rate at which energy is delivered by the source 1 the rate at which possible through the resistorwe would like to transfer energy as fast as possible ie we want the power supplied by 1 and In the diagram below energy is transmitted from the source of the greater emf 1 to the supplied by 1 and accepted by 2 to be as large as we can make it but also we would like You are given two identical conducting wires these are not idealized conductorsthey Quiz 3 DL sec Grade 102113 resistivityYou can connect them to make a single conducting wire in two ways soldering them energy is accepted by the receiver 2 and the rate at which energy is converted to In the diagram below energy is transmitted from the source of the greater emf 1 to the source of to lose as little energy as possible through the resistorexhibit resistivityYou can connect them to make a single conducting wire in two ways accepted by 2 to be as large as we can make it but also we would like to lose as little energy as bYou are now given a maximum acceptable rate of energy loss to heat during this source of lesser emf 2 with some dissipated by the resistance in betweenIaWrite down the rate at which energy is delivered by the source 1 the rate at which energy is thermal energy by the resistor together endtoend or winding them around each othertransmission as well as a minimum acceptable rate of delivery of energy to the receiversoldering them together endtoend or winding them around each otherPhysics 9C Discussion 3Winter Quarter 2013aWrite down the rate at which energy is delivered by the source 1 the rate at which possible through the resistorlesser emf 2 with some dissipated by the resistance in betweenExplain how these criteria determine the absolute and relative emfs of the sender and accepted by the receiver 2 and the rate at which energy is converted to thermal energy by the energy is accepted by the receiver 2 and the rate at which energy is converted to aWhich of these ways of connecting the wires represents connecting them in series and receiveraWhich of these ways of connecting the wires represents connecting them in series and which is bYou are now given a maximum acceptable rate of energy loss to heat during this resistor aWrite down the rate at which energy is delivered by the source 1 the rate at which energy is thermal energy by the resistor which is connecting them in parallelExplain your reasoningcDoes your answer above conrm what you know about power lines that you see every transmission as well as a minimum acceptable rate of delivery of energy to the receiverconnecting them in parallelExplain your reasoningIdayExplain how these criteria determine the absolute and relative emfs of the sender and accepted by the receiver 2 and the rate at which energy is converted to thermal energy by the bUsing the relationship of the resistance to the resistivitybYou are now given a maximum acceptable rate of energy loss to heat during this transmission receiverIVDC CircuitsbUsing the relationship of the resistance to the resistivityresistor cDoes your answer above conrm what you know about power lines that you see every P as well as a minimum acceptable rate of delivery of energy to the receiver PLmax lossmin deliveryFor the circuit below solve for the current through all the resistors in two waysRdayLAbYou are now given a maximum acceptable rate of energy loss to heat during this transmission 12Explain how these criteria determine the absolute and relative emfs of the sender and receiverPhysics 9C Discussion 3Winter Quarter 20131Using equivalent resistance andRRIVDC CircuitsAconrm the equivalent resistance relations for identical resistors connected in series and 2By using Kirchoffs RulesP as well as a minimum acceptable rate of delivery of energy to the receiver Pmax lossmin deliveryFor the circuit below solve for the current through all the resistors in two wayscDoes your answer above conrm what you know about power lines that you see every dayparallelLast 6 of Student ID Name First 3 letters of last name conrm the equivalent resistance relations for identical resistors connected in series and parallelExplain how these criteria determine the absolute and relative emfs of the sender and receiver1Using equivalent resistance andIEnergy and Capacitance122By using Kirchoffs RulesIIIDC CircuitsIIITransmission of EnergyRIITransmission of EnergycDoes your answer above conrm what you know about power lines that you see every dayShould it be difcult to push a dielectric between the two plates of a parallelplate capacitor In the diagram below energy is transmitted from the source of the greater emf 1 to the Suppose we can adjust the emfs to be however large we like in the real world we do this 1For the circuit to the right solve for the current through In the diagram below energy is transmitted from the source of the greater emf 1 to the source of Suppose we can adjust the emfs to be however large we like in the real world we do this with source of lesser emf 2 with some dissipated by the resistance in betweenPhysics 9C Discussion 5on which the free charge is xedit is charged then disconnected from a voltage source or IIIDC Circuitswith devices known as transformers which we will talk about later in the courseFurther all the resistors in two wayslesser emf 2 with some dissipated by the resistance in betweendifcult to pull it outArgue in terms of what happens to the potential energy density change devices known as transformers which we may talk about later in the courseFurther suppose that RRsuppose that we would like to transfer energy as fast as possible ie we want the power 1For the circuit to the right solve for the current through Iin the electric eld for this process and how that relates to the work you need to doaUsing equivalent resistance andSuppose we can adjust the emfs to be however large we like in the real world we do this we would like to transfer energy as fast as possible ie we want the power supplied by 1 and supplied by 1 and accepted by 2 to be as large as we can make it but also we would like Suppose we can adjust the emfs to be however large we like in the real world we do this with all the resistors in two waysIResistanceResistivityRRwith devices known as transformers which we will talk about later in the courseFurther to lose as little energy as possible through the resistorbBy using Kirchoffs Rules23accepted by 2 to be as large as we can make it but also we would like to lose as little energy as devices known as transformers which we may talk about later in the courseFurther suppose that 2R2RIIResistanceaUsing equivalent resistance andsuppose that we would like to transfer energy as fast as possible ie we want the power Winter Quarter 2013Winter Quarter 2013You are given two identical conducting wires these are not idealized conductorsthey exhibit Physics 9C Discussion 3Winter Quarter 2013aWrite down the rate at which energy is delivered by the source 1 the rate at which Rpossible through the resistormin deliverymin deliverywe would like to transfer energy as fast as possible ie we want the power supplied by 1 and 2If another battery is added between the two 2R resistors supplied by 1 and accepted by 2 to be as large as we can make it but also we would like You are given two identical conducting wires these are not idealized conductorsthey 20PPbBy using Kirchoffs Rules2R2RresistivityYou can connect them to make a single conducting wire in two ways soldering them 2R2R12energy is accepted by the receiver 2 and the rate at which energy is converted toRcan the current through all the resistors be found using to lose as little energy as possible through the resistorexhibit resistivityYou can connect them to make a single conducting wire in two ways accepted by 2 to be as large as we can make it but also we would like to lose as little energy as bYou are now given a maximum acceptable rate of energy loss to heat during thisrate of delivery of energy to the receiver rate of delivery of energy to the receiver rate of energy loss to heat during thisrate of energy loss to heat during this aWrite down the rate at which energy is delivered by the source 1 the rate at which energy is thermal energy by the resistor both methods aboveExplaintogether endtoend or winding them around each other2If another battery is added between the two 2R resistors transmission as well as a minimum acceptable rate of delivery of energy to the receiver4Rsoldering them together endtoend or winding them around each otherPhysics 9C Discussion 3Winter Quarter 2013aWrite down the rate at which energy is delivered by the source 1 the rate at which possible through the resistorRRExplain how these criteria determine the absolute and relative emfs of the sender and can the current through all the resistors be found using accepted by the receiver 2 and the rate at which energy is converted to thermal energy by the 4R4RSenergy is accepted by the receiver 2 and the rate at which energy is converted to aWhich of these ways of connecting the wires represents connecting them in series and receiver supplied by 1 andsupplied by 1 and 1aWhich of these ways of connecting the wires represents connecting them in series and which is Suppose we can adjust the emfs to be however large we like in the real world we do this both methods aboveExplainbYou are now given a maximum acceptable rate of energy loss to heat during this Suppose we can adjust the emfs to be however large we like in the real world we do this with 4Rresistor aWrite down the rate at which energy is delivered by the source 1 the rate at which energy is thermal energy by the resistor with devices known as transformers which we will talk about later in the courseFurther which is connecting them in parallelExplain your reasoningcDoes your answer above conrm what you know about power lines that you see every 1 50 In the circuit below the current passing through R1 is 20A The values for the resistors are transmission as well as a minimum acceptable rate of delivery of energy to the receiverdevices known as transformers which we may talk about later in the courseFurther suppose that connecting them in parallelExplain your reasoningsuppose that we would like to transfer energy as fast as possible ie we want the power 2R2Rdayminimum acceptableminimum acceptableExplain how these criteria determine the absolute and relative emfs of the sender and Winter Quarter 2013Winter Quarter 2013RRI22powerpoweraccepted by the receiver 2 and the rate at which energy is converted to thermal energy by the maximum acceptablemaximum acceptablebUsing the relationship of the resistance to the resistivitywe would like to transfer energy as fast as possible ie we want the power supplied by 1 and 4supplied by 1 and accepted by 2 to be as large as we can make it but also we would like bYou are now given a maximum acceptable rate of energy loss to heat during this transmission 1min deliverymin deliveryreceiver60V15FPPto lose as little energy as possible through the resistorIVDC CircuitsbUsing the relationship of the resistance to the resistivity2R2Raccepted by 2 to be as large as we can make it but also we would like to lose as little energy as resistor cDoes your answer above conrm what you know about power lines that you see every P as well as a minimum acceptable rate of delivery of energy to the receiver PL55 rate of delivery of energy to the receiver rate of delivery of energy to the receivermax lossmin deliveryPhysics 9C Discussion 3Winter Quarter 2013 rate of energy loss to heat during thisrate of energy loss to heat during this aWrite down the rate at which energy is delivered by the source 1 the rate at which For the circuit below solve for the current through all the resistors in two wayspossible through the resistorR13 R29 R318 R46 RdayL120Venergy is accepted by the receiver 2 and the rate at which energy is converted to AbYou are now given a maximum acceptable rate of energy loss to heat during this transmission Winter Quarter 2013Winter Quarter 2013IIExplain how these criteria determine the absolute and relative emfs of the sender and receiverbYou are now given a maximum acceptable rate of energy loss to heat during this 1Using equivalent resistance andRaWrite down the rate at which energy is delivered by the source 1 the rate at which energy is 21thermal energy by the resistor S4R4Rtransmission as well as a minimum acceptable rate of delivery of energy to the receiverIVDC Circuits2 supplied by 1 andsupplied by 1 and Aconrm the equivalent resistance relations for identical resistors connected in series and 2By using Kirchoffs RulesExplain how these criteria determine the absolute and relative emfs of the sender and P as well as a minimum acceptable rate of delivery of energy to the receiver Paccepted by the receiver 2 and the rate at which energy is converted to thermal energy by the max lossmin deliveryFor the circuit below solve for the current through all the resistors in two waysreceiverYou are now given a You are now given a transmission as well as a transmission as well as a Explain how these criteria determine the absolute and relative emfs of the sender and Explain how these criteria determine the absolute and relative emfs of the sender and receiverreceiverDoes your answer above conrm what you know about power lines that you see every Does your answer above conrm what you know about power lines that you see every daydaycDoes your answer above conrm what you know about power lines that you see every dayUsing equivalent resistance andUsing equivalent resistance andBy using Kirchoffs RulesBy using Kirchoffs RulesparallelDC CircuitsDC Circuitsresistorconrm the equivalent resistance relations for identical resistors connected in series and parallelbbcDoes your answer above conrm what you know about power lines that you see every ccFor the circuit below solve for the current through all the resistors in two waysFor the circuit below solve for the current through all the resistors in two ways1122Explain how these criteria determine the absolute and relative emfs of the sender and receiver1Using equivalent resistance and2R2Rminimum acceptableminimum acceptable3040LL22daypowerpowerLLmaximum acceptablemaximum acceptablePhysics 9C Discussion 3Physics 9C Discussion 3IVIVAAAAbYou are now given a maximum acceptable rate of energy loss to heat during this transmission 2By using Kirchoffs Rules111IIIDC CircuitsIIITransmission of EnergyIVDC Circuits resistorsresistors IITransmission of EnergycDoes your answer above conrm what you know about power lines that you see every dayP as well as a minimum acceptable rate of delivery of energy to the receiver PIIRRRRmax lossmin deliveryRRFor the circuit below solve for the current through all the resistors in two ways55RRIn the diagram below energy is transmitted from the source of the greater emf 1 to therate of energy loss to heat during this transmissionrate of energy loss to heat during this transmission R6 Explain how these criteria determine the absolute and relative emfs of the sender and receiver rate of delivery of energy to the receiverrate of delivery of energy to the receiver 1Using equivalent resistance and1For the circuit to the right solve for the current through In the diagram below energy is transmitted from the source of the greater emf 1 to the source of 23Winter Quarter 2013Winter Quarter 2013source of lesser emf 2 with some dissipated by the resistance in between2By using Kirchoffs RulesIIIDC CircuitsAcDoes your answer above conrm what you know about power lines that you see every dayall the resistors in two wayslesser emf 2 with some dissipated by the resistance in betweenRRR2323You are now given a You are now given a transmission as well as a transmission as well as a Explain how these criteria determine the absolute and relative emfs of the sender and Explain how these criteria determine the absolute and relative emfs of the sender and receiverreceiverDoes your answer above conrm what you know about power lines that you see every Does your answer above conrm what you know about power lines that you see every daydayUsing equivalent resistance andUsing equivalent resistance andBy using Kirchoffs RulesBy using Kirchoffs RulesIIIDC CircuitsRRDC CircuitsDC Circuits1For the circuit to the right solve for the current throughbbccFor the circuit below solve for the current through all the resistors in two waysFor the circuit below solve for the current through all the resistors in two ways1122IaUsing equivalent resistance andLLLLPhysics 9C Discussion 3Physics 9C Discussion 3IVIVAAAAall the resistors in two ways1For the circuit to the right solve for the current through RRRR15 resistorsresistors eq1234RRIIall the resistors in two waysRRRRRRbBy using Kirchoffs Rules23RR rate of energy loss to heat during this transmissionrate of energy loss to heat during this transmission 2R2RPhysics 9C Discussion Physics 9C Discussionrate of delivery of energy to the receiverrate of delivery of energy to the receiver 11 aUsing equivalent resistance andmaximum acceptablemaximum acceptableminimum acceptableminimum acceptableaUsing equivalent resistance andWinter Quarter 2013Winter Quarter 2013Rmin deliverymin deliveryRR2If another battery is added between the two 2R resistors eqbBy using Kirchoffs Rules20PPbBy using Kirchoffs Rules2R2R2R2R2R2R12Rcan the current through all the resistors be found using Which of these ways of connecting the wires represents connecting them in series and Which of these ways of connecting the wires represents connecting them in series and which is connecting them in parallelExplain your reasoningwhich is connecting them in parallelExplain your reasoningUsing the relationship of the resistance to the resistivityUsing the relationship of the resistance to the resistivityconrm the equivalent resistance relations for identical resistors connected in series and conrm the equivalent resistance relations for identical resistors connected in series and parallelparallelWrite down the rate at which energy is delivered by the source 1 the rate at which Write down the rate at which energy is delivered by the source 1 the rate at which energy is accepted by the receiver 2 and the rate at which energy is converted to energy is accepted by the receiver 2 and the rate at which energy is converted to thermal energy by the resistor thermal energy by the resistor rate of delivery of energy to the receiver rate of delivery of energy to the receiverEnergy and CapacitanceEnergy and Capacitance2If another battery is added between the two 2R resistors ResistanceResistance rate of energy loss to heat during thisrate of energy loss to heat during this Transmission of EnergyTransmission of EnergyShould it be difcult to push a dielectric between the two plates of a parallelplate capacitor Should it be difcult to push a dielectric between the two plates of a parallelplate capacitor on which the free charge is xedit is charged then disconnected from a voltage source or on which the free charge is xedit is charged then disconnected from a voltage source or difcult to pull it outArgue in terms of what happens to the potential energy density change difcult to pull it outArgue in terms of what happens to the potential energy density change in the electric eld for this process and how that relates to the work you need to doin the electric eld for this process and how that relates to the work you need to doYou are given two identical conducting wires these are not idealized conductorsthey You are given two identical conducting wires these are not idealized conductorsthey exhibit resistivityYou can connect them to make a single conducting wire in two ways exhibit resistivityYou can connect them to make a single conducting wire in two ways soldering them together endtoend or winding them around each othersoldering them together endtoend or winding them around each otheraabbIn the diagram below energy is transmitted from the source of the greater emf 1 to the In the diagram below energy is transmitted from the source of the greater emf 1 to the source of lesser emf 2 with some dissipated by the resistance in betweensource of lesser emf 2 with some dissipated by the resistance in betweenSuppose we can adjust the emfs to be however large we like in the real world we do this Suppose we can adjust the emfs to be however large we like in the real world we do this with devices known as transformers which we will talk about later in the courseFurther with devices known as transformers which we will talk about later in the courseFurther suppose that we would like to transfer energy as fast as possible ie we want the power suppose that we would like to transfer energy as fast as possible ie we want the power supplied by 1 and accepted by 2 to be as large as we can make it but also we would like supplied by 1 and accepted by 2 to be as large as we can make it but also we would like to lose as little energy as possible through the resistorto lose as little energy as possible through the resistoraaboth methods aboveExplain2If another battery is added between the two 2R resistors can the current through all the resistors be found using 4RPhysics 9C Discussion 3Physics 9C Discussion 3IIIIIIIIIIIIRR as well as aas well as a both methods aboveExplaincan the current through all the resistors be found using 4R4R4RSPhysics 9C Discussion Physics 9C Discussion 11 supplied by 1 andsupplied by 1 andUsing equivalent resistance andUsing equivalent resistance andBy using Kirchoffs RulesBy using Kirchoffs Rules1maximum acceptablemaximum acceptableminimum acceptableminimum acceptableSuppose we can adjust the emfs to be however large we like in the real world we do this both methods aboveExplainmax lossmax lossSuppose we can adjust the emfs to be however large we like in the real world we do this with 4RPPWhich of these ways of connecting the wires represents connecting them in series and which is Which of these

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