Series parallel circuit lab, complex circuit characteristics, current and voltage. If the following resistors were replaced with the values indicated. Two resistors r 1 and r 2 are connected in series if all the current that passes through r 1 also passes through. Notice that in some nodes like between r 1 and r 2 the current is the same going in as at is coming out. The purpose of this experiment is to better familiarize us with the concepts of series parallel circuits in regards to. The current will pass through a node and will then split between the resistors. By combining r2 and r3 as a parallel circuit it acts as a simpler series circuit as the parallel is added together. Its the same capstone file that was used for the ohms law lab. Notice the voltmeter has leads in the com and v ports and is connected from one side of the resistors to the other side. Pdf py2404 lab report series and parallel circuits.
With these two derived resistor relationships, we can nd all the properties of any circuit containing resistors in series or parallel or any combination of the two. When all the resistive components of a dc circuit are connected end to end to form a single path. Direct current circuits lab experiment 7 seriesparallel combination circuits instructor. These arrangements are called series and parallel circuits. Calculate i 1, i 2, i 3 and vo for the circuit shown in figure 1 for f 1khz and f 10khz. Resistive elements are not connected in series or parallel. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by. For part iii of the experiment, you will use two current probes.
The data section includes a diagram of the two circuits being. In this experiment, we could learn the difference between resistors in series and. This experiment was to determine the actual resistance of 4 series and parallel circuits by using the voltage and current across the circuits and comparing this value with the theoretical calculations of the circuit resistance. General physics iii lab page 1 of 6 pcccascade experiment. The equation for finding the resistance of a circuit in parallel can be defined as. Circuit construction kit series of three activitites inquiry based using phet in electricity unit. In a series circuit, there is only one path for the current to flow therefore all parts of a series circuit have the same current. The brightness of the light bulbs in series and parallel. The resistance of a resistive circuit element changes with temperature. Electrical dc series and parallel circuit electrical4u. In this experiment, the circuit characteristics of resistors in.
In this lab, my objective was to understand the relationships between resistance, potential difference, and current in a simple circuit. Resistors can be combined in simple circuit arrangements that increase or decrease the overall resistance in the circuit. For the rc circuit with two capacitor in series and the rc circuit with two capacitors in parallel, percent differences between the observed and theoretical values were all 9. Series parallel lab report series and parallel circuits. In a series circuit, there would only be one way for the energy to flow, whereas the parallel series includes more than one path for the travelling electricity. To study the equivalent resistances of two fundamental connections of resistors resistors in series and in parallel. Note, currents are measured indirectly by measuring the voltage across an. Set the input voltage to and frequency to the resonance frequency found in step 1 for circuit b in figure 7 2. In this portion of the lab, we will be studying circuits containing resistors in series and in parallel. Lab report on series and parallel circuit free essays.
So for example, in the case of dc, the circuits can also be divided into three groups, such as series dc circuit, parallel dc circuit and series and parallel circuit series dc circuit. The lab use the ohms law iru to find the equivalent resistance. Figure 5a is an example of the first category and figure 5b is an example of the second. To compare the characteristics of series circuits to the characteristics of parallel circuits. In this experiment, we will construct series and parallel circuits and investigate. 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. Lab report 1 series and parallel circuits introduction parallel and series circuits are able to be reduced to a single, equivalent resistance. Lab 3 circuits lab report series and parallel circuits shafkat. The purpose of this experiment is to experimentally determine the capacitance of three capacitors, verify series and parallel combination equations, and find the time constant for an rc circuit. Science 14 lab 3 dc circuits dartmouth college home. In both cases, it was simpler for the actual experiment to replace the battery and switch with a signal generator producing a square wave. Using your data and your answers to the questions, draw a conclusion that. The purpose of the lab is to find the equivalent resistance for components in an electrical circuit in series and parallel.
For one part of the lab we used two 100 ohm resistors in series and measured the following. Parallel circuit discussion free download as word doc. Please help me to correct my lab report and write the conclusion abstract. A parallel circuit is one that requires more than one path for current flow in order to reach all of the circuit elements. To study current flow, voltage, and resistance in series and parallel circuits. Resistors 3 lightbulbs 1 power supply of 3v 1 voltmeter 1 ammeter 1 cbl w ti84 calculator. Experiment 3 resistors in series and in parallel print this page to start your lab report 1 copy print 2 copies of this file data page object. Erin phlegar and stephen few physics 102l, section. We will connect some series circuits and analyze them using multisim as well on hardware. Now once the voltage divider formula is ran across the circuit, it is as if it is being done on a series circuit and not a seriesparallel circuit. Open the dc power supply set up file provided with the lab instructions.
In a parallel circuit, each device has a connection to the power supply, independent of the other device. This is an important factor because when a series circuit is broken, all of the load devices will not function. The current through and voltage across the resistor and capacitor, and inductor in the circuit were calculated and measured. 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.
The current divides, with some passing through each parallel. Part 2 determine the current and voltage through current dividers and voltage dividers. Physics 215 experiment 11 series and parallel circuits. Students successfully completing this lab will accomplish the following objectives. Series and parallel circuits lab report phys 2240 studocu.
Brian lavelle and winston tran abstract the purpose of this lab is to. Throughout this lab, we experimented with a circuit board which consisted of resistors and light bulbs. Then combine that equivalent resistance with the single resistor in series. A circuit composed solely of components connected in series is known as a series circuit. Gain experience analyzing and verifying, by measurements, the characteristics of series parallel resistive circuits. To practice more complicated construction of circuits.
Pdf py2404 lab report series and parallel circuits hassan. Construct the circuit shown in figure 1 and measure i 1, i 2, i 3 and vo. Insert the wires of these leads into the circuit board across the three resistors in series with the two multimeters set to voltage v and current a as shown in the figures 6 and 7. Part iii currents in series and parallel circuits 1. Physic lab 5 series and parallel circuits please h. The sum of the individual branch currents equals the total current in the circuit. Any electrical circuit can be categorized into three different groups series, parallel and series parallel. So we were able to verify the capacitance for all the parts of experiment one. The current flow is expected to be uniform throughout the series circuits, but will be stronger through the smaller resistor in the parallel circuits. Two components are in series if they share a common node and if the same. Capacitors phy 3l alexander loera khang lam purpose. If r is constant, the same for all v, then the circuit element obeys ohms law. Also if the amperage of the circuit decreases then the resistance of the overall circuit must increase.
Lab, report 2 elee2790u electric circuits uoit studocu. The main idea i obtained from this lab was that if the amperes of a circuit increases, then the resistance of that circuit must decrease. A series circuit is one where all the components including the battery are connected in a single, continuous loop. Equation 7 gives the e ective resistance for resistors in parallel. Switch off, before connecting the circuit of figure 6, measure the total. Your answers to the questions below should show some thought.
In a series circuit, the current through each of the components is the same, and the voltage across the circuit is the sum of the voltages across each component. The reciprocal of the total resistance equals the sum of the reciprocals of the individual branch resistances. Find the magnitude for v c for the following cases. Scribd is the worlds largest social reading and publishing site. At some frequency the inductive and capacitive reactances magnitudes becomes equal. There are three forms of circuits that could be used. Lab report series and parallel circuits february 19, 2016 shafkat salam lab partners. Science 14 lab 3 dc circuits theory all dc circuit analysis the determining of currents, voltages and resistances throughout a. Based on the voltage across the voltmeter and the resistance values of the resistors in the circuit, use ohms law ivr to calculate the theoretical current for each circuit.
Seriesparallel circuits lab free class notes online. Lab report series and parallel circuits electrical. Increase understanding of the relationship of voltage, current and. Conclusions electrical resistance and conductance resistor. In a parallel circuit, each device has a connection to the voltage source. Conclusion on series and parallel circuits conclusion on. Series circuits are sometimes called cascadecoupled or daisy chaincoupled.
You will be building circuits similar to the ones you will be working with in homework and exam problems. Thats the key difference between series and parallel series circuits defined. At other nodes specifically the threeway junction between r 2, r 3, and r 4 the main blue current splits into two different ones. This is from a physics lab report on voltage and current for resistors in series and parallel. The voltage is the same across each branch of a parallel circuit. Click to order your paper objective to construct and observe the operation of series and parallel resonant circuits theory overview a resonant circuit which is in series consists of a capacitor, a resistor and an indicator connected in a loop. Investigation of the characteristics of series and. In this lab, we will understand the very basics of circuit analysis. Ecet 231 circuit analysis i lab 6 series parallel dc circuits objective. Parallel circuit discussion series and parallel circuits resistor. What do you notice about the relationship between the three voltage readings v 1, v 2, and v tot in parallel circuits.
Py2404 lab report series and parallel circuits name. We will observe the effect of varying resistance on current while keeping voltage constant. To compare the differences between a series circuit and a parallel circuit. We will also analyze the current in a series circuit and the effect of varying voltage on current. To compare the current and voltage distribution in parallel and series circuits. In that case, that is the only time you can acquire the resistance value after a slight inconvenient process. Use pspice to determine i 1, i 2, i 3, and vo in figure 1 at f 1khz and f 10khz. The current that enters a series circuit has to flow through every element in the circuit.
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