Sample circuit problems packet ap examples solutions from video solutions to problems. Oct 31, 2014 part 2 determine the current and voltage through current dividers and voltage dividers. May 08, 2015 thanks for sharing with your fzx teacher. Errors in the seriesparallel buildup of fourterminal resistors. Verify the characteristics of parallel circuits r t, v r1 v r2, etc b. Lab report series and parallel circuits electrical. Lab report series and parallel circuits february 19, 2016 shafkat salam lab partners. All the current is the same throughout the circuit. Please help me to correct my lab report and write the conclusion abstract. Brian lavelle and winston tran abstract the purpose of this lab is to study the flow of current and potential difference across different points in a circuit composed of resistors in series, parallel or a combination of both.
You will be building circuits similar to the ones you will be working with in homework and exam problems. Guidelines to seriesparallel combination circuit analysis. Maloney graphical problem with internal resistance mr. To accomplish this, we built a series and parallel circuit each containing three resistors.
General physics iii lab page 1 of 6 pcccascade experiment. In any experiment involving currents there are many possible sources of error, here are a few systematic ones. Learners follow a methodical approach for the dc analysis of series parallel circuits. And, when circuits are small enough in size, quantum physics causes the circuits to have different and unexpected characteristics.
Series and parallel resistors practice khan academy. Unless you have an excused absence, you cant make up the lab. Experimental verification of kirchhoffs voltage law and. Objective the purpose of this lab exercise is to illustrate how voltages and currents are divided in combination series parallel circuits this will be demonstrated through multiple measurements of these properties. The parallel rlc circuit is the exact opposite to the series circuit we looked at in the previous tutorial although some of the previous concepts and equations still apply.
Electrical resistance and the resistor introduction ohms law is the most fundamental equation in electric circuit analysis. Scientific measurement and instrumentation errors are often classified into three types. Failing to label voltage polarities and current directions when you analyze any circuit, the first step is to properly label the. In this interactive object, learners solve a seriesparallel dc circuit analysis problem. A particular circuit will first be analyzed theoretically and then those predictions will.
Lab 3 circuits lab report series and parallel circuits. Basically virtual lab for the two main types of circuit. To test your understanding of kirchhoffs laws, you will learn to use a breadboard to wire complex electric circuits and verify the voltages and currents predicted by these laws. What are the common sources of error in experiments involving.
The purpose of the lab is to find the equivalent resistance for components in an electrical circuit in series and parallel. Equations for two resistors in series and parallel. Your meters might effect the circuit to a discernible amount. Derive a formula to calculate voltage v 1 in terms of r 1, r 2, r 3, r 4, and v s. The complete circuit to be analyzed is shown in figure 3, where the labels indicate conductance. 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. Choose the smallest power rating for each resistor that can be used if 14 w, 12 w, and 1 w resistors are available in the laboratory.
Calculate i1, i2, i3 and vo for the circuit shown in figure 1 for f 1khz and f 10khz. The purpose of this lab is to understand series and parallel circuit connections and how to connect meters for reading current and voltage. You also saw that in a parallel circuit with a battery, 1. Quantum tunneling, for example, could allow electrons to flow through an insulator, if that insulator was thin enough. Read the following chapters from the text giancoli.
A battery feels a load, or total resistance, rather than. Errors in the seriesparallel buildup of fourterminal. Lab, report 2 elee2790u electric circuits uoit studocu. A mental image that might help is to think of water flowing in a stream. Rlc series circuit and rlc parallel circuit lab, series parallel combinations, discrete frequencies, amplitude and phase measurements, dc circuit analysis, ac circuits. When two or more resistors are connected in series, the equivalent resistance is.
For this experiment you will need an assortment of wires with alligator connectors and banana connectors. Analysis techniques for series parallel resistor circuits. Most circuits have more than one component, called a resistor that limits the flow of charge in the circuit. In addition, the expected distribution of the voltage and current to each resistor in a network will also be tested. Such devices are important for extending the use of the national. Media resources series parallel dc circuits analysis power calculations in a series parallel circuit effects of a rheostat in a series parallel circuit knowledge check 1. Having found all voltage and current values for this circuit, we can show those values in the. Circuits laboratory experiment 3 ac circuit analysis. Assess which resistors in a circuit are connected together in simple series or simple parallel. What resistance in series parallel with the network in figure 2 will result in i t 10ma.
Physic lab 5 series and parallel circuits please help me to correct my lab report and write the conclusion abstract. In this experiment, we could determine the total current flowing through a series circuit and parallel circuit, the voltage across each resistor and the current flowing through a series circuit and parallel circuit. What are the common sources of error in experiments. Experimental verification of kirchhoffs voltage law and kirchhoffs current law abstract we have experimentally tested kirchhoffs voltage law and kirchhoffs current law by measuring the sum of the voltage drops around several closed paths, and the sum of the currents at several nodes, in two resistive circuits.
We then use ohms law to find the resistance by dividing the measured voltage by the. Conclusion on series and parallel circuits conclusion on. Calculate and measure the voltage, current and resistance characteristics of complex series parallel circuits. Series and parallel circuits explained voltage current. To avoid making this mistake, commit the following to memory. The lab use the ohms law iru to find the equivalent resistance. If youre seeing this message, it means were having trouble loading external resources on our website. I want students to see that there are two different ways of approaching a problem such as this. In figure 1, all of the current flowing from the battery must also flow through the resistors r. Physics 215 experiment 11 series and parallel circuits. Sep 02, 2016 this physics video tutorial explains the concept of series and parallel circuits and how to find the electrical current that flows through the circuit. For equipment, each lab station should include a dual adjustable.
The voltages across each resistor should add up to v tot in the series circuits, and the voltages should be uniform throughout the parallel circuits. Circuit analysis is a tricky subject, and its easy to make certain mistakes, especially when youre first starting out. Use pspice to determine i1, i2, i3, and vo in figure 1 at f 1khz and f 10khz. What this value for resistance equal to, greater than, or less than the resistance calculated based on the emf of the power supply. We will also analyze the current in a series circuit and the effect of varying voltage on current. Ohm performed repeated experiments on a resistor, applied different voltages, measured current. Connect the parallel circuit shown below using 50 resistors for resistor 1, 10 resistors for resistor 2 and 68 resistors for resistor 3. A measure of this limit on charge flow is called resistance. Rlc series and parallel circuits lab free class notes. If you took ps2 last semester, or ps2 or physics 11a in the fall of 2006, then you have already been introduced to.
Physic lab 5 series and parallel circuits please h. We then confirm that resistance experimentally by measuring the total current and the total voltage. We are going to build both a series and parallel circuit. The general strategy to accomplish this goal is as follows. Errors in the seriesparallel buildup of fourterminal resistors chester h. Series and parallel circuits ece 2100 circuit analysis laboratory updated 20 november 2019 equipment and supplies variable pre laboratory assignment 1. In a series circuit there is only one path for the flow of the current to leave from the positive side and returns to the negative side. Based on the rule for calculating total resistance for resistors arranged both in parallel and in series, what was the total resistance in the circuit. S eries p arallel c ircuits i ntroduction in this experiment, we reduce series parallel circuits to an equivalent resistance. Using these relationships, a complex circuit can be redrawn as a circuit with a single resistor.
If youre behind a web filter, please make sure that the domains. Lab 3 parallel and series circuits phys 163 slu studocu. Parallel rlc circuit and rlc parallel circuit analysis. Seriesparallel dc circuits analysis power calculations in a seriesparallel circuit effects of a rheostat in a seriesparallel circuit knowledge check 1. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by. For part iii of the experiment, you will use two current probes. 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.
We will observe the effect of varying resistance on current while keeping voltage constant. Seriesparallel dc circuits analysis wisconline oer this website uses cookies to ensure you get the best experience on. Rc circuits 2 two circuit elements are in series if all of the current flowing through one also flows through the other. For two devices to be connected in series, only those two devices can share a common junction point or node. I learned that, in a series circuit, the current remains the same throughout the circuit and the potential difference varies across each resistor. Use pspice to simulate and analyze a series parallel rlc circuit at discrete frequencies and over a wide range of frequencies. A complete lab writeup includes a title, a purpose, a data section, and a conclusiondiscussion of results. Resistive elements are not connected in series or parallel.
The current flow is expected to be uniform throughout the series circuits, but will be stronger through the smaller resistor in the parallel circuits. Verify your calculations experimentally by measuring i t. A dc circuit is necessary for dc electricity to exist. Ohms law is named after george simon ohm a german physicist. And we can see the relationship of the resistances, current and voltage in circuit which related to ohms law. Resistors in series and parallel example no2 find the equivalent resistance, r eq for the following resistor combination circuit. To use ohms law to calculate equivalent resistance of series and parallel circuits. In this experiment, we are investigating the relationships between resistance, potential difference, and current in a simple circuit. In the first part of this experiment we will study the properties of resistors, which are connected in series. An electrical circuit is a network that has a closed loop, giving a return path for the current. Phys 2240section 516 lab 4b report anagha krishnan l ab r eport 4b.
Series and parallel ac circuits worksheet ac electric circuits. If you understand what we are doing in this experiment, you will be all set to do well on the midterm questions about circuits. Calculate and measure rt for the following circuits. The simplest combinations of resistors are the series and parallel connections illustrated in. Measurements on dc circuits 1 objectives the objective of this experiment is to analyze simple resistive circuits in dc. Series and parallel circuits components in an electrical circuit are in series when they are connected one after the other. Measurement and error analysis homework reading prior to lab. The goal of seriesparallel resistor circuit analysis is to be able to determine all voltage drops, currents, and power dissipations in a circuit. 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. In this experiment, we could learn the difference between resistors in series and parallel.
Series parallel dc circuits analysis wisconline oer this website uses cookies to ensure you get the best experience on our website. Analysis on series and parallel circuits an electrical network is an interconnection of electrical elements such as resistors, inductors, capacitors, transmission lines, voltage sources, current sources, and switches. If there is a rock in the stream, the water flow splits in two, with some flowing to one side of the rock and some flowing around the other side. Ohm performed repeated experiments on a resistor, applied different voltages, measured current and found relationship between these quantities. Series and parallel resistive circuits physics lab viii objective in the set of experiments, the theoretical expressions used to calculate the total resistance in a combination of resistors will be tested experimentally. Ohms law and resistors in series and parallel college of san. Component failure analysis continued seriesparallel. Develop a general rule regarding how resistance affects current flow, when the voltage is constant.
It states that the amount of electric current flowing in a circuit is directly proportional to the voltage applied to the circuit, and inversely proportional to. In any experiment involving currents there are many possible sources of error, here are a few. Lab 3 capacitors and series rc circuits 9 lab 4 inductors and series rl circuits 18 lab 5 parallel rc and rl circuits 25 lab 6 circuit resonance 33 lab 7 filters. Theoryin the dc analysis of resistor circuits we examined how to calculate the total circuit resistance ofseries components. Series and parallel resistive circuits mercer university. Series and parallel circuits lab report phys 2240 studocu. Resistors in series and parallel resistor combinations. Identify series and parallel resistors in a circuit setting. Series and parallel circuits 3 there are three possible sources of error in this lab. Calculate and measure rt, v1, v2, v3, i1, i2, i3, it, and ia for the circuit in figure 2. Seriesparallel dc circuits analysis wisconline oer. Adequately determining the resistance in a circuit. The same resistors were then connected in parallel and the current into each resistor was.
Series and parallel circuits objectives to study current flow and voltages in series and parallel circuits. After completing this lab, you will be able to explain the difference between series and parallel circuits, and describe how the voltage and. The topics range from basic laboratory procedures and resistor identification through series parallel circuits, mesh and nodal analysis. Perform other measurements that seem relevant, such as testing pencils of different width, do serial and parallel circuits of pencil lines behave as expected etc. Dc dcac laboratory manual for ac electrical circuits. Maloney parallel and series example docphysics kirchoffs laws doc physics what is due. Review how to find the equivalent resistance for resistors in parallel and series configurations. Parallel and series resistor circuit analysis worked example using ohms law reduction.
The analysis of a series parallel dc networks requires a firm understanding of the basics of both. To investigate the current flow and voltages in series and parallel circuits, and. Wrong connecting the voltmeter will yield wrong readings. As in the previous circuit, the voltage probe is used to measure the voltage applied to both resistors.
Two equal resistors are connected a in series and b in parallel. The basic tools of series parallel simplifi cations, source transformations, theveninnorton equivalent circuits, superposition, nodevoltage analysis, and meshcurrent analysis can all be used in the analysis of circuits in the phasor domain in order to determine the steadystate response of. Include a separate procedure, results section, analysis of results and conclusion in the laboratory report for each circuit series and parallel under investigation in this lab. Resistors in series and parallel introduction direct current dc circuits are characterized by the quantities current, voltage and resistance. The data section includes a diagram of the two circuits being compared and a documented record of procedure and observations. A direct current dc electrical circuit consists of a source of dc electricity with a conducting wire going from one of the source terminals to a set of electrical devices and then back to the other terminal, in a complete circuit.
The faults in the instrument itself and the faults which may occur due to environmental conditions. Not required equipment list qty items part numbers 1 acdc electronics lab em8656 2 d cell 1. Dc circuits may be in series, parallel or a combination. We will connect some series circuits and analyze them using multisim as well on hardware. The goal of series parallel resistor circuit analysis is to be able to determine all voltage drops, currents, and power dissipations in a circuit.
Also shown at the end of the series and parallel circuits chapter was how the table method works just as well for aiding failure analysis as it does for the analysis of healthy circuits. What do you notice about the relationship between the three voltage readings v 1, v 2, and v tot in parallel circuits. Learn how changing resistance values affect current flow in both series and parallel circuits. In addition each main resistor is allowed a departure from nominal. To compare the characteristics of series circuits to the characteristics of parallel circuits. Recall the current and voltage properties of series and parallel configurations of resistors. More often, however, we have to use relations to nd the result we want. This manual is intended for use in a dc electrical circuits course and is. We may take this technique one step further and adapt it for total qualitative analysis. In this lab, we will understand the very basics of circuit analysis. Page april 20, 1965 the use of n equal resistors a in series and b in parallel provides an n2.
Error % error multisim theoretical measured measured lab measurements with dmm. If the following resistors were replaced with the values indicated. Experiment 4b series parallel circuits lab report phys. In this lab, we will investigate kirchhoffs 1st and 2nd rules for series and parallel circuits.
To analyze this type of circuit, it should first be simplified reduced to an equivalent resistor, req. Part iii currents in series and parallel circuits 1. A real voltmeter has a very high resistance so that the small current which flows through it can usually be neglected without serious error. Beginning circuit analysis students frequently struggle to identify the difference between series and parallel connections of devices. We are going to learn how to build simple circuits.
597 934 462 519 1515 158 122 679 321 477 370 1221 558 112 1281 566 1270 158 361 474 734 410 795 1107 604 71 479 1483 1474