The theory behind this experiment was ohms law of determining. With simple parallel circuits, all components are connected between the same two sets of electrically common points, creating multiple paths for the current to flow. Series and parallel resistors introduction youtube. Series resistors this laboratory uses the tutorial software and hardware you were introduced to last time.
Lecture notes, introduction to human resources management samplepractice exam 2016, questions exam. 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. It explains how to calculate the current flowing in a circuit with two resistors in series using ohms law. Lab, report 2 elee2790u electric circuits uoit studocu. Not required equipment list qty items part numbers 1 acdc electronics lab em8656 2 d cell 1.
Parallel resistors calculate the effective resistance of those two resistors when placed in the corresponding configuration. Capacitance in series a shows a series connection of three capacitors with a voltage applied. Conclusion on series and parallel circuits conclusion on. Dc circuits analysis laboratory 2011 2012 experiment no.
Youve just watched joves introduction to series and parallel resistors. Ohm discovered that the ratio of voltage to current in a metallic resistor is constant as long as the temperature is held constant. As for any capacitor, the capacitance of the combination is related to charge and voltage by. Series and parallel circuits lab report phys 2240 studocu. The theory behind this experiment was ohms law of determini ng.
And we can see the relationship of the resistances, current and voltage in circuit which related to ohms law. Introduction the purpose of this activity is to confirm that when resistors are added in series to a circuit, they have a total resistance that equals the sum of their individual resistances, and that when resistors area added in parallel to a circuit, they have a total resistance that is less than the individual. The instructor will specify how to turn in the report. You can also verify them from the basic ohms law calculator. Using algebra, the relationships for determining equivalent resistance r eq for resistors in series andor parallel can be derived. To calculate the total overall resistance of a number of resistors connected in. You will be building circuits similar to the ones you will be working with in homework and exam problems. To compare the current and voltage distribution in parallel and series circuits.
The lab use the ohms law iru to find the equivalent resistance. In our previous post about resistors, we studied about different types of resistors. Additionally you should now also know how to connect resistances in series and parallel and analyze them using ohms law. To check kirchhoffs current law kcl from previous lab 2. To test your circuit, briefly press on the switch to. What do you notice about the relationship between the three voltage readings v 1, v 2, and v tot in parallel circuits. To learn to record data and report experimental results, i. In the series circuit, it was discovered that the current flowing through both resistors was moreorless equal to one another 0.
Resistors in series and parallel intro physics lab 2. Report lab 1 series and parallel circuits resistor scribd. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by. In part 1 of the lab you will be analyzing the very top circuit. Manual series parallel switch free pdf file sharing. Read this essay sample on series and parallel circuits lab report. Determine whether resistors are in series, parallel, or a combination of both series and parallel. Physics 215 experiment 11 series and parallel circuits. To study the equivalent resistances of two fundamental connections of resistors resistors in series and in parallel. Lab 4 series and parallel resistors physics 212 lab what you need to know. R1 r2 a there are two ways in which resistors can be hooked up. This physics video tutorial provides a basic introduction into dc circuits. To practice more complicated construction of circuits.
Depending on how these constrictions and split are arranged, the geometry can either be considered in series, or in parallel. Physic lab 5 series and parallel circuits please h. The real practically calculated red color vs the theoretical values blue are plotted on the graph. In some cases when we do not get the desires or specific resistor values we have to either use variable resistors such as potentiometers or presets to obtain such precise values. Turn in a hard copy of your report and plots ph106 lab. Resistors in series and parallel connections fau studocu. For example, an automobiles headlights, radio, and so on, are wired in parallel. Ohms law iii resistors 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. Note that the resistors are connected to each other at two points. This week you are going to examine how the current and voltage of different combinations of resistors are related. The physics last week you examined how the current and voltage of a resistor are related. Get an idea of how to write about ohms law physics lab report here. The voltage drop across the battery vt will be the total sum of the individual drops across each of the 3 resistors, and.
Open the dc power supply set up file provided with the lab instructions. 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. Using the same circuit, repeat the procedure above for an ammeter reading of 1. To learn the limits of the operation of components and equipment. Input connector for volts, ohms, diode test, continuity. Resistance values are indicated by a standard color code. The procedure and results are then briefly described for each major part of the exercise. The purpose of the lab is to find the equivalent resistance for components in an electrical circuit in series and parallel.
Determine the average current in the second graph following the same procedure. The equivalent resistance is the sum of the individual resistances. Lab 4 resistors in series and parallel introduction. Feb 12, 2019 hopefully you remember how to find the resistance of an object by measuring the voltage and current from last lab. Type your name, date, the day of the week you did the lab, and the name of the ta. Physic lab 5 series and parallel circuits please help me to correct my lab report and write the conclusion abstract. 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. Series and parallel connections the objectives of this lab are. The purposes of this experiment are to test ohms law, to study resistors in. Introduction to resistors the engineering projects. We will use a multimeter to measure the voltage v, resistance r, and current i of said series circuit and use the collected data to determine how a series circuit functions.
Tow resistors r 1, r2 are connect in parallel, prove that r 1. Explain why total resistance of a parallel circuit is less than the smallest. A device which obeys ohms law generally can be described as a. With simple series circuits, all components are connected endtoend to form only one path for the current to flow through the circuit. Emt 1150 lab professor aparicio carranza electrical circuits. As you do the next section, refer back to this analogy to aid in your conceptual understanding of the various circuits. This is because these three resistors are in series. In the previous experiment you constructed a circuit. In this lab, we will investigate kirchhoffs 1st and 2nd rules for series and parallel circuits. 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.
Copy your spreadsheet results and paste them into the document. For the current divider circuit in figure 10 calculate the total effective resistance that is seen by the supply for each setting of r 2. The objective of this experiment is to verify ohms law applied to a. Resistors in series and parallel physics lab report series and parallel resistors lab physics capacitor and resistors programming massively parallel processors. Kitronik ltd how to calculate resistors in series and parallel resistors in series when resistors are connected one after each other this is called connecting in series. In a circuit in parallel, the two resistors are both 51. Series and parallel resistors goals to understand the fundamental difference between resistors connected in series and in parallel. View lab report lab 4 from phys 1 at university of texas, dallas. Resistors in series and parallel introduction direct current dc circuits are characterized by the quantities current, voltage and resistance. Theory in the previous experiment, you constructed 4 circuits. Centrifugal pumps are often used together to enhance either the flow rate or the delivery pressure beyond that available from the single pump. I performed a series of experiments with different configurations of resistors, measuring the voltage and current across each resistor.
These arrangements are called series and parallel circuits. Resistive elements are not connected in series or parallel. Jan 27, 2014 solving for rtot and itot in basic resistor problems. You can have as many resistors in series as you like. Lab report you must hand in a typed lab report for every lab you perform. Experience series parallel resistors by measurement. The report begins with a short statement of what is being measured, and why. A resistor network that is a combination of parallel and series connections can be broken up. Theory the purposes of this experiment are to test ohms law, to study resistors in series and parallel, and to learn the correct use of ammeters and voltmeters. Now take the same resistors and repeat the stuff above with resistors in parallel. When two resistors are in series, they have the same current running through them.
Lab 4 series and parallel dc circuits phy2049l friday lab 1. Resistors are in series if the same current must pass sequentially through them. Many circuits consist of resistor networks, in which series and parallel connections appear. 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. Oct 07, 2015 resistors in series and parallel combinations. 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. The first part consisted of understanding how to determine the current, voltage and resistance as part of ohms law. Use the appropriate list of major features for series or parallel connections to solve for the unknowns. An electrical circuit is a network that has a closed loop, giving a return path for the current. To use ohms law to calculate equivalent resistance of series and parallel circuits. The purpose of this experiment is to explore the relationship between voltage and current in networks of resistors connected in series and in parallel by constructing 6 simple circuits. Resistors can be combined in simple circuit arrangements that increase or decrease the overall resistance in the circuit. Series and parallel resistors california state university. To calculate the voltages and currents in simple circuits involving only resistors using the.
To analyze this type of circuit, it should first be simplified reduced to an equivalent resistor, req. In the third step, currents were calculated for series and parallel circuits. Comment on the relation between your measured v and i results and the voltage and current principles of the parallel connection. In addition, you will measure the resistance of series and parallel combinations of resistors, and compare the results to theoretical calculations based on equations provided. Resistors in series and parallel combinations electronics post. Start this problem by determining the effective resistance of resistors 2, 3, and 4. Resistors in series and parallel physics lab report. Simple resistor circuits introduction in this lab, we will investigate ohms law, and study how resistors behave in various combinations. To learn how resistor combine in series and in parallel. The goal of this experiment is to study circuits made up of two resistors in series or parallel. You should now understand how to connect current and voltage sources, and measure various electrical circuit parameters using the multimeter. Check to see whether the answers are reasonable and consistent. Jul 29, 20 lab 4 series and parallel dc circuits phy2049l friday lab 1.
Proceed directly to step 10 if you have already completed the mydaq mini lab equivalent resistance i series and your breadboard still contains the same resistors that you measured earlier. February 12, 2019 hopefully you remember how to find the resistance of an object by measuring the voltage and current from last lab. 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 its resistance. Sample lab report phys 231 the following is an example of a wellwritten report that might be submitted by a phys 231 student. Note in that opposite charges of magnitude flow to either side of the originally uncharged combination of capacitors when the voltage is applied. If you understand what we are doing in this experiment, you will be all set to do well on the midterm questions about circuits. Ohms law and resistors in series and parallel college of san. Series and parallel circuits 85 advance reading text. 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. A handson approach applications of gpu computing series axelson j. Appendixc appendix dmm objective the objective of this lab is to study circuits with resistors connected in series, parallel, and combination. A resistor is a twoterminal device that is used to resist the flow of current. Introduction in this experiment we will determine how voltages are distributed in resistor circuits according to.
Notice the voltmeter has leads in the com and v ports and is connected from one side of the resistors to the other side. Lab 4 resistors in series and parallel introduction\abstract in this. See if you can figure out something to plot that will give you a straight line. First, lets remind ourselves that the effective resistance of resistors in a series is and the effective resistance of resistors in parallel is. Calculations verification of ohms law report the theoretical calculations are achieved from the original formula, v ir. To calculate the total overall resistance of a number of resistors connected in this way you add up the individual resistances. Parallel resistors for a parallel connection, the voltage drops will be the same, but the two currents together will add up to the total current flowing out of the source. For some piping system designs, it may be desirable to consider a multiple pump system to meet the design requirements. In some cases when we do not get the desires or specific resistor values we have to either use variable resistors such. The introduction should include a general overview of the ex.
Series and parallel resistors physics 212 lab the circuit board in front of you has three circuits on it. The brightness of the light bulbs in series and parallel. The objective of this laboratory experiment is to analyze a series circuit in respect to its components and characteristics. Examine the circuit diagram to make this assessment. Resistors in series and parallel resistor combinations. I also used the ohms law to determine the calculated values and compare. Along the way, you will establish that certain measurements are a ected by the way in which circuit elements are connected to each other. To calculate the voltages and currents in simple circuits involving only resistors using the rules for adding series and parallel resistors.
Test ohms law through the construction of series and parallel circuits. Now, the circuit can be simplified to the following. If you have resistors in series, then the following is true. Resistors in series and parallel introduction abstract in this experiment, i used resistors in parallel and in series, and i also calculated the total resistance of an electric circuit. Three resistors r1, r2, and r3 connected in series. This experiment should show you the difference between resistors in series and parallel. Electrical resistance and the resistor introduction.
A student in a physics lab mistakenly wired a light bulb, battery, and switch as shown in link. Resistors in series and parallel example no2 find the equivalent resistance, r eq for the following resistor combination circuit. In this experiment, we could learn the difference between resistors in series and parallel. Resistors in series and parallel introductionabstract in this experiment, i used resistors. Therefore, for two resistors in series the current i1 through r1 is the same as the.
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