This experiment is conducted in series and parallel to identify the pressure different in both pumps. Ohm discovered that the ratio of voltage to current in a metallic resistor is constant as. Three resistors r1, r2, and r3 connected in series. Series and parallel connections the objectives of this lab are.
Resistors in series and parallel example no2 find the equivalent resistance, r eq for the following resistor combination circuit. The method of calculating the circuits equivalent resistance is the same as that for any individual series or parallel circuit. Resistors in series and parallel introductionabstract in this experiment, i used resistors. The simplest combinations of resistors are the series and parallel connections illustrated in link. Capacitance in series a shows a series connection of three capacitors with a voltage applied.
In this portion of the lab, we will be studying circuits containing resistors in series and in parallel. Move the voltmeter leads to the spring clips on either side of the first resistor and press the pushbutton switch and record the voltage across the resistor in the lab report section. In addition, measurements will be made to check the validity of assumptions used to derive the theoretical expression for the total resistance of this. Centrifugal pump is known as one of the most widely used pumps for transferring liquids. 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. The objective of this experiment is to verify ohms law applied to a.
Resistors in series and parallel introduction direct current dc circuits are characterized by the quantities current, voltage and resistance. To compare the current and voltage distribution in parallel and series circuits. Jan 17, 2020 ncert class 10 science lab manual resistors in parallel class 10 physics practical introduction. Resistors are in series if the same current must pass sequentially through them. Part a viva questions part b experiment part b viva questions. The purposes of this experiment are to test ohms law, to study resistors in. The total resistance of a combination of resistors depends on both their individual values and how they are connected. What would you expect the effective resistance of two equal resistors in series to be, compared to the resistance of a single resistor. 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.
For one part of the lab we used two 100 ohm resistors in series and measured the following. If you understand what we are doing in this experiment, you will be all set to do well on the midterm questions about circuits. Use the appropriate list of major features for series or parallel connections to solve for the unknowns. You will be building circuits similar to the ones you will be working with in homework and exam problems. Resistors in series and parallel physics libretexts. Mr habgood shows you how to measure the total resistance of resistors in series and parallel. In this experiment, the circuit characteristics of resistors in. Conclusions electrical resistance and conductance resistor. To check kirchhoffs current law kcl from previous lab 2. Emt 1150 lab professor aparicio carranza electrical circuits. A voltmeter was used to obtain our measurements for this circuit as well. They are said to be in parallel since the voltage across each resistor equals the voltage of the power supply and the resistors provide parallel paths for the current flow. Carbon and metal film resistors are the most popular class of resistors which are employed in our labs.
The series circuit a series circuit or series connected circuit is a circuit having just one current path. The object of this lab is to study resistances in series and parallel and to observe and quantify the effect of an ammeter on a circuit. Examine the circuit diagram to make this assessment. Resistors in series and parallel introductionabstract in this experiment, i used resistors in parallel and in series, and i also calculated the total resistance of an electric circuit. Explain why total resistance of a parallel circuit is less than the smallest resistance. Ncert class 10 science lab manual resistors in parallel. Graph for ohms law lab report the real practically calculated red color vs the theoretical values blue are plotted on the graph. 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. Materials the materials utilized in this experiment are the following. 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.
I performed a series of experiments with different configurations of resistors, measuring the. The instructor will specify how to turn in the report. The objective of this experiment is to use ohms law to determine the resistance of several individual resistors and the equivalent resistance of series and parallel combinations. Measure the resistance of the parallel combination of two resistors.
Likewise, in the experiment we performed that idea became evident. Equation 7 gives the e ective resistance for resistors in parallel. To learn how to operate a wheatstone bridge and to verify the formulas for the combination of resistances. Once all five have been decoded, record values in excel. In this experiment, we will study the two simplest combinations. Simple resistor circuits introduction in this lab, we will investigate ohms law, and study how resistors behave in various combinations. The three resistors were more vertically stacked than in a line. The leftmost band of carbon resistors indicates the possible tolerance of resistance. View lab report lab 4 from phys 1 at university of texas, dallas. Ohms law and resistors in series and parallel college of san.
I performed a series of experiments with different configurations of resistors, measuring the voltage and current across each resistor. Resistors in series and parallel physics lab report series and parallel resistors lab physics capacitor and resistors programming massively parallel processors. Copy your spreadsheet results and paste them into the document. The brightness of the light bulbs in series and parallel. In part 1 of the lab you will be analyzing the very top circuit. Such resistors have a tolerance value which ranges between 0. Record in your journal the resistance values indicated from the color code bands. When the resistors are connected in series current. 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. In figure 1, all of the current flowing from the battery must also flow through the resistors.
Resistors in series and parallel connections fau studocu. These arrangements are called series and parallel circuits. Note in that opposite charges of magnitude flow to either side of the originally uncharged combination of capacitors when the voltage is applied. A circuit is said to be in a parallel connection when the resistors are connected in such a way that they branch out from one point. Resistors in series and parallel combinations electronics post. Physic lab 5 series and parallel circuits please h. 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. We dont get to use those very often, so this should be fun. Number of resistors nominal resistor value number of materials item. It explains how to calculate the current flowing in a circuit with two resistors in series using ohms law. You will apply various voltages across the resistor or circuit using a power supply, and measure the current i through the resistor and the voltage.
Resistors in series and parallel resistor combinations. This activity will allow you to explore a model circuit and decide whether these light circuits are connected in series or in parallel. While most theoretical values are identical to practical values, one might note a difference of red dot for 2. Resistors in series and parallel physics lab report. A handson approach applications of gpu computing series axelson j. D cells and current through the circuit in the lab report section. To accomplish this, we built a series and parallel circuit each containing three resistors. In a circuit in parallel, the two resistors are both 51. Series and parallel circuits objectives to study current flow and voltages in series and parallel circuits. Series and parallel resistors california state university. Procedure of part one of this experiment was, decode the resistance values by the colors of the five resistors available to you.
Physic lab 5 series and parallel circuits please help me to correct my lab report and write the conclusion abstract. 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. Physics 215 experiment 11 series and parallel circuits 45 5. Oct 07, 2015 resistors in series and parallel combinations. Notice the voltmeter has leads in the com and v ports and is connected from one side of the resistors to the other side. Slide wire wheatstone bridge, decade res istance box, unknown resistors, galvanometer and a battery or power supply. Figuring out parallel resistors is a little trickier than series resistors. This experiment demonstrates how current is distributed in resistors connected in series or parallel, and thus describes how to calculate the total effective. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by.
Resistors in series two resistors are connected in series, which implies the tail of first resistor is connected to the head of second resistor. 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. 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. Jan 09, 2017 mr habgood shows you how to measure the total resistance of resistors in series and parallel. Connect the two resistors with resistance values of about 2200. The voltage drop across the battery vt will be the total sum of the individual drops across each of the 3 resistors, and. Lab 4 resistors in series and parallel introduction. 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. A student in a physics lab mistakenly wired a light bulb, battery, and switch as shown in link. We measured the current and potential differences across the resistors on each circuit. In this experiment, we could learn the difference between resistors in series and parallel. Connect the two resistors on the circuit board that are marked 150 ohms and 700 ohms as shown in figure 6a.
An electrical circuit is a network that has a closed loop, giving a return path for the current. To build our parallel circuit, we connected a power supply to three different resistors in parallel using wires and clips. To practice more complicated construction of circuits. Along the way, you will establish that certain measurements are a ected by the way in which circuit elements are connected to each other. 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. Feb 22, 2015 our series circuit looked like the one in the sketch below. Conclusion on series and parallel circuits conclusion on. Comparison of theoretical and measured resistance of resistors in series three series combinations were done in this experiment. And we can see the relationship of the resistances, current and voltage in circuit which related to ohms law. Not required equipment list qty items part numbers 1 acdc electronics lab em8656 2 d cell 1. The most common place you will encounter electric circuits is across them.
Series and parallel resistors physics 212 lab the circuit board in front of you has three circuits on it. In this experiment, you will construct circuits using multiple resistors. Series and parallel circuits lab report phys 2240 studocu. Adjust the power supply until the potential difference across the resistors is 1. 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. Resistors can be combined in simple circuit arrangements that increase or decrease the overall resistance in the circuit. If two resistors r1 and r2 are connected in series, the currents passing through the two resistors are equal, and the total voltage is equal to the sum of the individual voltages across the two resistors fig. This is from a physics lab report on voltage and current for resistors in series and parallel. This experiment should show you the difference between resistors in series and parallel.
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. Theory in the previous experiment, you constructed 4 circuits, each circuit built with one resistive element. In this lab we will measure and analyze currents and voltages for circuits containing a single resistor and also for two resistors in series and for two in parallel. The series circuit a series circuit or seriesconnected circuit is a circuit having just one current path. Then construct a circuit using a dcell battery, electronics lab borad and wire leads as shown in figure 3. 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. As for any capacitor, the capacitance of the combination is related to charge and voltage by. Ohm discovered that the ratio of voltage to current in a metallic resistor is constant as long as the temperature is held constant. To study the equivalent resistances of two fundamental connections of resistors resistors in series and in parallel. Phys 102 formal simple dc circuits lab report 21,384 views. Physics 215 experiment 11 series and parallel circuits. Determine whether resistors are in series, parallel, or a combination of both series and parallel. To use ohms law to calculate equivalent resistance of series and parallel circuits. 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.
Resistor circuits that combine series and parallel resistors networks together are generally known as resistor combination or mixed resistor circuits. In this experiment, centrifugal pumps have been used to determine the flow rates and the pressure head. Physics 1040l lab wheatstone bridge series and paralled. When resistors are connected such that they branch out from a single point and join up again in the circuit. In our previous post about resistors, we studied about different types of resistors. Resistors of two or more can be placed in series or paralle. 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. In this experiment you will examine the difference between series and parallel circuits. Dec 11, 2017 this physics video tutorial provides a basic introduction into dc circuits.
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