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. At some frequency the inductive and capacitive reactances magnitudes becomes equal. This experiment will have the student investigate the characteristics of parallel circuits. Compare the sum of the voltages measured from going around the loop. A parallel circuit is one that has two or more paths for the electricity to flow. In other words, the loads are parallel to each other. Examine the circuit diagram to make this assessment. Two resistors r1 and r2 are connected in parallel if the voltages v1 and v2 across each are the same and equal to the voltage, v, across the parallel network.
In a parallel connection of resistors why is the voltage. Set a potential difference v b1v and determine the current through each resistor at the points a, b, and c using the dmm in ammeter mode. Physic lab 5 series and parallel circuits please h. The total predicted resistance was determined by using the series and total resistance resistors current parallelparallel resistor laws and the resistance values of the various components of the circuit. Series and parallel resistors goals to understand the fundamental difference between resistors connected in series and in parallel. In figure 2, the current flowing through r 4 does not flow through r 5 and vice.
Parallel lab included, labeled and organized all parts of the lab report. To study the equivalent resistances of two fundamental connections of resistors resistors in series and in parallel. The electricity moving through a wire or other conductor consists of its voltage v, current i and resistance r. Please help me to correct my lab report and write the conclusion abstract. Part 2 of the lab obtain three resistors connect them in series as shown in the figure. In that case, that is the only time you can acquire the resistance value after a slight inconvenient process. Determine whether resistors are in series, parallel, or a combination of both series and parallel. Resistors are connected in parallel measurements resistance between. Series and parallel circuits lab report phys 2240 studocu. Series and parallel connections the objectives of this lab are.
Oct 07, 2015 resistors in series and parallel combinations. In lecture, we used this property of resistors in parallel to derive an equation for calculating the equivalent resistance. Calculate and measure the voltage, current and resistance characteristics of complex series parallel circuits. Also, measurements in very simple series and parallel circuits will be discussed. Dec 12, 2012 conclusion in the conclusion,we can conclude that the value of phase angle between and aredepend on the value of capacitor. 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. If r is constant, the same for all v, then the circuit element obeys ohms law. Conclusion in the conclusion,we can conclude that the value of phase angle between and aredepend on the value of capacitor. Dc circuits may be in series, parallel or a combination. The voltage drop across the battery vt will be the total sum of the individual drops across each of the 3 resistors, and. To check kirchhoffs current law kcl from previous lab 2. Firstly, the knowledge of the differences between series and parallel circuits was the basic skill used to wire up our houses. Have performed experiment about series and parallel circuit. Data section includes a diagram of the series and the parallel circuit.
To understand the resonance frequency, cutoff frequency, bandwidth and quality factor of a resonance circuit. The resistance of a resistive circuit element changes with temperature. In a circuit in parallel, the two resistors are both 51. Emt 1150 lab professor aparicio carranza electrical circuits. To study the behavior of series and parallel lc circuits at resonance. To check the results of connecting series and parallel resistors kcl its a fundamental law that manifestation of the conservation of matter charges, and it says that the sum of currents. While in parallel circuit, the resistor serves as a current divider. In a parallel connection of resistors, why is the voltage drop across the resistors the same even if the resistances are different. Series and parallel circuits 85 advance reading text. Resistors in series and parallel combinations electronics post.
Conclusion on series and parallel circuits conclusion on. 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. Conclusions electrical resistance and conductance resistor. Resistors of two or more can be placed in series or paralle. In a parallel connection of resistors why is the voltage drop. Apparatus equipment to examine the voltage and current flow in a series and parallel circuit of resistors. That is, the currents i1 and i2 through each of the resistors add to give the total current, i, flowing into and out of the network. When the resistors were placed in series for the second part of the experiment, the power came out to be 0. Copy your spreadsheet results and paste them into the document. We were also able to investigate the relationship between the voltages across each resistor and the total voltage and the relationship between the current flowing through each resistor and the total current. Sep 02, 2011 in a circuit in parallel, the two resistors are both 51. If the value of of capacitor is high, than the values of vr will besmaller than the vc and if the value of capacitor is low,so the value of vr is bigger than thevc.
The brightness of the light bulbs in series and parallel. Appendixc appendix dmm objective the objective of this lab is to study circuits with resistors connected in series, parallel, and combination. Series and parallel circuits objectives to study current flow and voltages in series and parallel circuits. For parallel connection the total resistance of two identical resistors is thus. Adjust the power supply until the potential difference across the resistors is 1. To study current flow, voltage, and resistance in series and parallel circuits. In general, compare measured results with calculated results and. Voltage is potential energy, current is the amount of electrons flowing through the wire, and resistance is the friction force on the electron flow. Equation 7 gives the e ective resistance for resistors in parallel. This proves that in a circuit containing resistors in series arrangement, the total resistance of the circuit, given that the only components in the circuit are said resistors, would be approximately the sum of the resistance of each individual resistor present. In this experiment, we could learn the difference between resistors in series and. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by.
Physic lab 5 series and parallel circuits please help me to correct my lab report and write the conclusion abstract. Not required equipment list qty items part numbers 1 acdc electronics lab em8656 2 d cell 1. Agilent u8031a dc power supply agilent 34461a digital multimeter i ntroduction parallel circuits. You will need 3dmms for this part of the experiment. Series and parallel resistors california state university. In figure 1, all of the current flowing from the battery must also flow through the resistors r 1 and r 2. V3 0 r1 req parallel r2 figure 4 parallel resistors lets say that you took the leads from a voltmeter and placed them in the upper two corners of the circuit in figure 3a. Notice the voltmeter has leads in the com and v ports and is connected from.
The definitions of series and parallel circuits will be given in this lab. If two resistors are in series, then same current i flow through each resistor. The reason this happen because high value of capacitor will. This is from a physics lab report on voltage and current for resistors in series and parallel. Resistors are in series if the same current must pass sequentially through them. Resistors in parallel see different currents, but they each experience the same potential difference voltage.
The tolerance range for the circuit was predicted to be between 1847. Note that the resistors are connected to each other at two points. Rc circuits 2 two circuit elements are in series if all of the current flowing through one also flows through the other. In this experiment, we could learn the difference between resistors in series and parallel. You will be building circuits similar to the ones you will be working with in homework and exam problems. Physics 215 experiment 11 series and parallel circuits. Conclusion on series and parallel circuits course hero. Conclusion in conclusion i have learned how to operate the dmm as a. Open the dc power supply set up file provided with the lab instructions. After that the student will investigate the voltage and current relationships in a combination seriesparallel circuit. To compare the current and voltage distribution in parallel and series circuits.
An electrical circuit is a network that has a closed loop, giving a return path for the current. Two resistors in series a circuit having two resistors r1 and r2 in series is indicated below. To calculate the voltages and currents in simple circuits involving only resistors using the rules for adding series and parallel resistors. You may just need to show the resulting document on the lab computer, or the instructor may also ask for additional analysis, including a more comprehensive lab. The instructor will specify how to turn in the report. Two resistors r 1 and r 2 are connected in series if all the current that passes through r 1 also passes. For the third part of the experiment, remove all resistors and connect wires to the light bulb, as shown in figure 4. 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.
Oct 31, 2014 repeat step 4 until your voltage is at 10 volts. A series circuit is a circuit in which resistors are arranged in a chain, so the current has only one path to take. Theory in the previous experiment, you constructed 4 circuits. Compound series and parallel circuit using all three of your resistors, wire the compound series and parallel circuit as shown in figure 4. Physics 215 experiment 11 series and parallel circuits 45 5.
For one part of the lab we used two 100 ohm resistors in series and measured the following. Physics resistors in series and parallel 2 of 5 youtube. The voltage drop across the battery vt will be the total sum of the individual drops. University of north carolina at charlotte department of.
To examine the voltage and current flow in a series and parallel circuit of resistors. The main idea i obtained from this lab was that if the amperes of a. Notice the voltmeter has leads in the com and v ports and is connected from one side of the resistors to the other side. Resistance, ohms law, and i v curves lab report studocu. The total predicted resistance was determined by using the series and total resistance resistors current parallel parallel resistor laws and the resistance values of the various components of the circuit. Seriesparallel circuits lab free class notes online. Using equations 4 and 7, we can nd all the properties of any circuit containing resistors in series or parallel or any combination of the two. Apply the knowledge you have about series and parallel connection of resistors to determine the effective resistance of circuits. Resistors in series and parallel, sample of essays. The equivalent resistance rp of r1 and r2 in parallel. You will be building circuits similar to the ones you will be. Introduction electricity is an essential part of the modern life experience, and as an engineer it is essential to know how it behaves and responds to changes in its trajectory.
In our previous post about resistors, we studied about different types of resistors. In conclusion, the power rating of a parallel connection is higher than that of a series. 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. Use the appropriate list of major features for series or parallel connections to solve for the unknowns. To practice more complicated construction of circuits. And we can see the relationship of the resistances, current and voltage in circuit which related to ohms law. Series and parallel circuits adam capriola and ben york experiment performed. Three resistors r1, r2, and r3 connected in series. Series parallel lab report series and parallel circuits. To understand the resonance frequency, cutoff frequency, bandwidth and quality factor of a resonance.
Determine the resistance of the resistors by colour coding. Ohms law iiiresistors in series and parallel v rrr 2 1 2 3 e v 1 v 3 v t i 1 i i t 2 i 3 figure 1. In this lab, we will be studying circuits containing resistors in series and in parallel. To determine if a circuit is inductive or capacitive.
Resistors in series and parallel arrangements in order for charges to move in a conductor, there must be a potential difference across the conductor, and there must be a complete path leading away from and back to the. Conclusion from the experiment we have done, we can conclude that type of arrangement determine the. To use ohms law to calculate equivalent resistance of series and parallel circuits. General physics iii lab page 1 of 6 pcccascade experiment. Resistors 3 lightbulbs 1 power supply of 3v 1 voltmeter 1 ammeter 1 cbl w ti84 calculator.
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