If youre behind a web filter, please make sure that the domains. Converting the circuit from a series to a parallel circuit. Draw a circuit with resistors in parallel and in series. Identify series and parallel resistors in a circuit setting if youre seeing this message, it means were having trouble loading external resources on our website. A series circuit is one where all the components including the battery are connected in a single, continuous loop.
Click the reset button to begin working on a parallel circuit. As resistors are added in series to a circuit, the total resistance will. Circuits circuit analysis basc your answers to questions 31 through 33 on the information below. In this advancedinquiry experiment, students use multimeters to determine the relationships between voltage, current and resistance for both series and parallel circuits. Resistors in series and parallel resistor combinations. Learn parallel circuits with free interactive flashcards. In both parts explicitly show how you follow the steps in the problemsolving strategies for series and parallel resistors above. Electrons flow from the negative side of the battery around in a loop to the positive side. The electrician surveys the site and determines what kind of currents and voltages are required to satisfy the clients needs. Two resistors in series a circuit having two resistors r1 and r2 in series is indicated below. From your observations of the currents in these series circuits, answer the. We want our students to build circuits to understand ohms law, potential difference, current, and resistance, but most of the lab time is spent fighting with the equipment.
In this seriesparallel circuit, resistors r1 and r2 are in series with each other, but resistor r3 is neither in series nor in parallel with either r1 or r2. The amount of current is the same through any component in a series circuit resistance. Parallel lab included, labeled and organized all parts of the lab report. Series and parallel inductors resources and going further. Consequently, the simple all right angles phasor diagrams found for basic series and parallel circuits may be replaced with more general phasor diagrams with nonright angles. Equivalent resistance, current, and power in a series circuit a battery with a. The total resistance of any series circuit is equal to the sum of the individual resistances voltage. Kirchhoffs voltage law kvl states, for a closed loop series path the algebraic sum of all the voltages around any closed loop in a circuit is equal to zero. The objective of this exercise is to examine kirchhoffs voltage and current laws. The supply voltage in a series circuit is equal to the sum of the individual voltage drops.
Remember to include your reasoning when you are solving. A companion laboratory manual for ac electrical circuits is also available. Observe what happens to the other bulb and the ammeter reading and record your observations. Accurately answer questions in complete sentences, at a high school level. The answers to this question may seem paradoxical to students. Part 2 determine the current and voltage through current dividers and voltage dividers. Record the voltages and currents through each part. This stops the circuit from draining the battery while you add jumpers. You may want to do the calculations for each circuit before coming to lab. How does the motion of the electrons through the resistors compare to those from the battery.
Loose wires, worn out batteries, dead light bulbs and missw. Where a set of electrical components are connected in branches. Thousands of different circuits can be built with this gizmo. Also, measurements in very simple series and parallel circuits will be discussed. Note that in these calculations, each intermediate answer is shown with an. Equation 7 gives the e ective resistance for resistors in parallel. Parallel dc circuits practice worksheet with answers. Included in this zip file is a powerpoint for use with the students. Determine if everyday objects are conductors or insulators, and take measurements with an ammeter and voltmeter. A circuit where the ammeter is connected in parallel. A 5011m resistor, a 10ohm resistor, and a 15 ohm resistor are connected in parallel with a battery the current through the 5ohm resistor is 2. Draw what the screen looks like explain your answers to the following questions. The aim of this activity is to use the electric circuits simulation above by phet to investigate the properties of circuits and to discover some circuit rules that are always true.
Series parallel circuits series parallel circuits can be more complex as in this case. In what way would your answer to question 4 above be important for an. Sep 02, 2011 what do you notice about the relationship between the three voltage readings v 1, v 2, and v tot in parallel circuits. View the circuit as a schematic diagram, or switch to a lifelike view. Physic lab 5 series and parallel circuits please h. Not required equipment list qty items part numbers 1 acdc electronics lab em8656 2 d cell 1. Answer key series and parallel circuits in a series circuit electricity has only one path to follow. After completing this lab, you will be able to explain the difference between series and parallel circuits, and describe how the voltage and. May 14, 2017 circuit lab 3 series and parallel circuit experiment. The current flow is expected to be uniform throughout the series circuits, but will be stronger through the smaller resistor in the parallel circuits. Circuit lab resistors in series and parallel circuits. Each of these circuits will use the same three resistors. Data section includes a diagram of the series and the parallel circuit.
Physic lab 5 series and parallel circuits please help me to correct my lab report and write the conclusion abstract. Series and parallel circuits purpose to build series and. Resistive elements are not connected in series or parallel. The purpose of this lab is to verify ohms law then to apply ohms law to series parallel circuits and verify the current and voltage rules. Simple series and parallel circuits the definitions of series and parallel circuits will be given in this lab. Founded in 2002 by nobel laureate carl wieman, the phet interactive simulations project at the university of colorado boulder creates free interactive math and science simulations. Fuses, resistors, and switches must be connected in series to the components they are. Though i may have received some help in understanding the concepts andor requirements, i did the work myself. Calculate and measure the voltage, current and resistance characteristics of complex series parallel circuits. Series and parallel improved answer there are four categories of circuit.
A complete loop in which electrons from a voltage or current source flow. Series and parallel circuits basics 3 5 click the advanced tab and alter the resistivity of the wire. Reading this series and parallel circuits answers will have the funds for you more than people admire. For one part of the lab we used two 100 ohm resistors in series and measured the following.
Create circuits using batteries, light bulbs, switches, fuses, and a variety of materials. The explanation is what will be graded, so be as complete as possible, using information from the previous circuits to support your answer. Fuses, resistors, and switches must be connected in series. Series and parallel circuits both 4 basic parts energypower source ex. In circuit b we have resistors r 1 and r 2 combined to get. If two resistors are in series, then same current i flow. In this lab you will work with two circuits, one series and one in parallel. Which is cheaper a series or a parallel circuit answers. Calculating equivalent resistances in parallel circuits experiment time part 1 experiment time part 2 rules of thumb for series and parallel resistors series and parallel capacitors experiment time part 3 experiment time part 3, continued. Circuit lab 3 series and parallel circuit experiment youtube. From our measurementsdata, how do i know that our circuit gives the correct value of the resistance. Physics 215 experiment 11 series and parallel circuits. Electrical circuits have become commonplace in todays society.
Calculate the current through each resistor and the total current for the circuit in pie based on the nominal voltage and resistance. Series and parallel circuits super teacher worksheets. Note that in these calculations, each intermediate answer is shown with an extra digit. Electrical circuitsinquiry lab kit for ap physics 1.
Students will be able to discuss basic electricity relationships in series and parallel circuits build circuits from schematic drawings use voltmeters and ammeters to take readings in circuits. Resistors in series and parallel circuits using cck simulation venu kantamani period 1 learning goals. Series and parallel circuits by corienne garbison on prezi. Referring to the example combining series and parallel circuits and figure 5, calculate i 3 in the following two different ways. In this portion of the lab, we will be studying circuits containing resistors in series and in parallel. Calculate and measure r t, v 1, v 2, v 3, i 1, i 2, i 3, i t, and i a for the circuit in figure 2. Complex is a catchall, used to describe circuits that are not series. If the following resistors were replaced with the values indicated. Find the current that would pass through each resistor and the voltage across each if they are connected in a series b parallel. Where series components all have equal currents running through them, parallel components all have the same voltage drop across them series. You are going to take measurements of current and potential difference in series and parallel circuits. The lab use the ohms law iru to find the equivalent resistance. Circuit construction kit series of three activitites inquiry based using phet in electricity unit.
Name date class series and parallel circuits lab 32. Learn about electrical circuits with the phet circuit construction kit briefly play with the app, learning the draganddrop components follow the instructions. Basically virtual lab for the two main types of circuit. In this lab, we will investigate kirchhoffs 1st and 2nd rules for series and parallel circuits. You are going to build 2 series circuits, 2 parallel circuits and one combination circuit and measure the current through and voltage across each resistor. Parallel circuits have at least two or more devices connected in such a way that. Parallel circuits have multiple ways more than one path for current to travel. Parallel circuits 6 parallel circuits provide more than one path for electrons to move. Resistors in series and parallel university physics volume 2. In the next picture, we again see three resistors and a battery. The purpose of the lab is to find the equivalent resistance for components in an electrical circuit in series and parallel.
Series and parallel circuits lab report phys 2240 studocu. Calculate and measure rt for the following circuits. Series and parallel resistors practice khan academy. If a battery is being used, remove two cells from the battery. Measure the voltage and resistance at each indicated spot and record in the chart above. This is needed in a circuit to start the electrons moving. Circuit activity 2 series and parallel circuits using. May 25, 2009 series circuits only have one way one path for current to travel. To analyze this type of circuit, it should first be simplified reduced to an equivalent resistor, req. Provide reasoning to explain the measurements in circuits.
Series and parallel circuits the easy way, and bundled to boot. Another purpose of this question is to instill in students minds the concept of components in a simple parallel circuit all sharing the same amount of voltage challenge your students to recognize any mathematical patterns in the. If students have access to calculators that can do complexnumber arithmetic, the complex approach is actually simpler for seriesparallel combination circuits, and it yields richer more informative results. Draw arrows to show the path of the electricity in this series circuit. It will lead to know more than the people staring at you. The answers on this lab are a product of my own work and effort. We recorded the current through, and voltage across, each resistor as well as the entire network. What series and parallel circuits are how many volts are in each bulb skills practiced. While the bulbs are still lit, carefully disconnect one of the bulbs from the circuit.
Seriesparallel dc circuits analysis power calculations in a seriesparallel circuit effects of a rheostat in a seriesparallel circuit knowledge check 1. The current through a lightblllb connected across the terminals of a 123v outlet is 0 50 at what rate does the bulb convert electric energy to light. Recently, we did a lab where we constructed a circuit with two 1 k. You will apply a dc voltage to the circuit and measure the current through and voltage across each resistor. The first principle to understand about parallel circuits is that the voltage is equal across all components in the circuit. Your answers to the questions below should show some thought. This is from a physics lab report on voltage and current for resistors in series and parallel.
I want students to see that there are two different ways of approaching a problem such as this. Resistors in series and parallel circuits using cck simulation erica chen learning goals. Simple series circuits series and parallel circuits. Find req, the equivalent resistance in this circuit. Series and parallel circuits, physics lab help studypool. Series and parallel cir cuits purpose to build series and parallel circuits and study the differences between them backgr ound electricians are called upon whenever new buildings need electrical work.
On this page, well outline the three principles you should understand regarding series circuits. Phet sims are based on extensive education research and engage students through an intuitive, gamelike environment where students learn through exploration and discovery. Again, at first glance this resistor ladder network may seem a complicated task, but as before it is just a combination of series and parallel resistors connected together. Build circuits with batteries, resistors, light bulbs, fuses, and switches. Suppose you are doing a physics lab that asks you to put a resistor into a circuit, but all. Explain why total resistance of a parallel circuit is less than the smallest resistance of.
Seriesparallel circuits lab free class notes online. You will also need access to a power supply set at 6 volts, a multimeter, as well as 50, 100, and and 500 ohm resistors. In a series circuit, certain general rules may be stated with regard to quantities of voltage, current, resistance, and power. Where a set of electrical components are connected in two or more continuous loops. Even now, there are many sources to learning, reading a book nevertheless becomes the first substitute as a great way. In this experiment, we could learn the difference between resistors in series and parallel. For this experiment you will need an assortment of wires with alligator connectors and banana connectors. Choose from 500 different sets of parallel circuits flashcards on quizlet. For questions 2 through 4, you may want to verify your answers by measuring the effect.
And we can see the relationship of the resistances, current and voltage in circuit which related to ohms law. Rules of series and parallel circuits are very important for students to comprehend. Circuit lab 3 series and parallel circuit experiment. Circuit activity 2 series and parallel circuits using only cck inquiry based description the students will use the simulation to learn the goals through an inquiry approach. Notice the voltmeter has leads in the com and v ports and is connected from one side of the resistors to the other side. An introduction on how to teach the basics of parallel and series circuits, including how to do a simple lab on the difference between parallel and series circuits for light bulbs. Resistors in series and parallel example no2 find the equivalent resistance, r eq for the following resistor combination circuit. In parallel voltage always stays the same no matter where you measure at. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by.
In a parallel circuit, all of the resistor leads on one side of the resistors are. Students will work hard to memorize the rules without really comprehending why the rules are true, and therefore often fail to recall or apply the. Series and parallel ac circuits worksheet ac electric circuits. Series parallel dc circuits analysis power calculations in a series parallel circuit effects of a rheostat in a series parallel circuit knowledge check 1. However, a trend i have noticed in many students is the habit of memorizing rather than understanding these rules. May 14, 2014 in this lab, we will investigate kirchhoffs 1st and 2nd rules for series and parallel circuits.
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