In circuit b we have resistors r 1 and r 2 combined to get. Construct the circuit shown in figure 1 and measure i 1, i 2, i 3 and vo. Circuit construction kit series of three activitites inquiry based using phet in electricity unit. Lab 01 voltage and current measurement and ohms law in series parallel dc circuits bte2122 electrical fundamentals and circuit analysis i laboratory. These arrangements are called series and parallel circuits. To understand the resonance frequency, cutoff frequency, bandwidth and quality factor of a resonance circuit. 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. One such advance was made by a german physicist named georg simon ohm.
The circuits will be wired up on the pasco circuit board. Seriesparallel dc circuits analysis power calculations in a seriesparallel circuit effects of a rheostat in a seriesparallel circuit knowledge check 1. Circuits such as these fall into one of two categories. An electrical circuit is a combination of two or more electrical components which are interconnected by conducting paths. Experiment 5 dc seriesparallel circuits objectives to make current and voltage measurements in a seriesparallel circuit. Erin phlegar and stephen few physics 102l, section. Figure 5a is an example of the first category and figure 5b is an example of the second. There are two types of electricity direct electric current and alternating current, i. You will also gain familiarity with connecting circuits and with voltmeters measuring voltage across a circuit element or elementsin parallel and ammeters measuring current through a circuit element or elementsin series. 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. Oct 31, 2014 part 2 determine the current and voltage through current dividers and voltage dividers. 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. Variable power supply 1 digital multimeter dmm 1 breadboard resistors.
Determine if common objects are conductors or insulators. Students successfully completing this lab will accomplish the following objectives. When all the resistive components of a dc circuit are connected end to end to form a single path. In any experiment involving currents there are many possible sources of error, here are a few systematic ones. Explain basic electricity relationships in 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. The reciprocal of the total resistance equals the sum of the reciprocals of the individual branch resistances. The focus of this exercise is an examination of basic parallel dc circuits with resistors. To determine if a circuit is inductive or capacitive. Physic lab 5 series and parallel circuits please help me to correct my lab report and write the conclusion abstract.
Gain experience analyzing and verifying, by measurements, the characteristics of seriesparallel resistive circuits. Laboratory in wave motion, electricity, magnetism and optics phys 2240 uploaded by. In this lab, my objective was to understand the relationships between resistance, potential difference, and current in a simple circuit. Note, currents are measured indirectly by measuring the voltage across an. For equipment, each lab station should include a dual adjustable. Gain experience analyzing and verifying, by measurements, the characteristics of series parallel resistive circuits. In the first part of this experiment we will study the properties. The current will pass through a node and will then split between the resistors.
Lab 01 voltage and current measurement and ohms law in seriesparallel dc circuits bte2122 electrical fundamentals and circuit analysis i laboratory. Check the power balance in the circuit introduction. For example, in figure 2, the equivalent resistance of r 4 and r 5 in parallel, 1 r 4 1 r 5 1 r 4 r 5 r 4 r 5, is in series with r 3. The current flow is expected to be uniform throughout the series circuits, but will be stronger through the smaller resistor in the parallel circuits. Rlc series and parallel circuits lab free class notes. Why would you want to set a circuit up in parallel. Pdf lab 01 voltage and current measurement and ohms law in.
Seriesparallel dc circuits analysis wisconline oer this website uses cookies. The sum of the individual branch currents equals the total current in the circuit. Seriesparallel dc circuits worksheet dc electric circuits. 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. Conclusion on series and parallel circuits conclusion on.
Determine the total resistance of resistors connected in parallel 4. Physic lab 5 series and parallel circuits please h. Students will work hard to memorize the rules without really comprehending why the rules are true, and therefore often fail to recall or apply the rules properly. Learners follow a methodical approach for the dc analysis of series parallel circuits. Seriesparallel circuits lab free class notes online. Again according to ohms law, the voltage drop across a resistor is the product of its electrical resistance and the current flow through it. What are the common sources of error in experiments. Part 2 determine the current and voltage through current dividers and voltage dividers.
This experiment is an introduction to the wiring of simple electrical circuits, the use of ammeters and voltmeters, series and parallel circuits, and rc circuits. With simple series circuits, all components are connected endtoend to form only one path for the current to flow through the circuit 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 from one end of the battery to the other rules regarding series and parallel circuits. Use pspice to simulate and analyze a series parallel rlc circuit at discrete frequencies and over a wide range of frequencies. Dc circuits may be in series, parallel or a combination. Voltage is potential energy, current is the amount of electrons flowing through the wire, and resistance is the friction force on the electron flow. Hence, it can be concluded that in a series dc circuit, the same current flows through all parts of the electrical circuit. Familiarize yourself with a common benchtop dc power supply and all. Evaluate simple series and parallel circuits to predict changes to voltage, current, or resistance when simple changes are made to a circuit. Pdf lab 01 voltage and current measurement and ohms law. Measurements on dc circuits 1 objectives the objective of this experiment is to analyze simple resistive circuits in dc. Seriesparallel dc circuits analysis wisconline oer. Ecet 231 circuit analysis i lab 6 series parallel dc circuits objective.
The voltage is the same across each branch of a parallel circuit. Electrical dc series and parallel circuit electrical4u. In a series circuit, current is equal through all components. Calculate and measure the voltage, current and resistance characteristics of complex series parallel circuits. To study the equivalent resistances of two fundamental connections of resistors resistors in series and in parallel. A dc circuit is necessary for dc electricity to exist. Principles the electrical current i flowing through a device such as a resistor with resistance r is defined as the amount of charge q flowing through the device per unit time. Ecet 231 circuit analysis i lab 6 seriesparallel dc circuits objective. Jun 09, 2019 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. To practice more complicated construction of circuits. If a fifth band were present, the first three bands indicate the. You are calculating the the thevenin equivalent circuit as seen by r 4.
This is a very basic definition of electrical circuit dc circuit. In this experiment, we could learn the difference between resistors in series and parallel. Series and parallel circuits lab report phys 2240 studocu. The first lab session will have the students familiarize themselves with some common electrical tools and components used for circuits and use them to experimentally test and confirm the validity of concepts learned in the lectures. Emt 1150 lab professor aparicio carranza electrical circuits. To study the behavior of series and parallel lc circuits at resonance.
The purpose of the lab is to find the equivalent resistance for components in an electrical circuit in series and parallel. One difference between parallel and the series resonant circuits is the qc value, which determines the circuit bandwidth or selectivity. Resistors can be combined in simple circuit arrangements that increase or decrease the overall resistance in the circuit. To examine the voltage and current flow in a series and parallel circuit of resistors.
Series dc circuit when all the resistive components of a dc circuit are connected end to end to form a single path for flowing current, then the circuit is referred as series dc. Phy 124 dc circuits stony brook physics laboratory manuals. Circuits in the first category can be analyzed using the concept of. Series dc circuit when all the resistive components of a dc circuit are connected end to end to form a single path for flowing electric current, then the circuit is referred as. Seriesparallel circuits seriesparallel circuits can be more complex as in this case. Lab 3 dc circuits and ohms law introduction during the nineteenth century so many advances were made in understanding the electrical nature of matter that it has been called the age of electricity. The objective of this laboratory experiment is to analyze a series circuit in respect to its components and characteristics. The lab use the ohms law iru to find the equivalent resistance. The electricity moving through a wire or other conductor consists of its voltage v, current i and resistance r. If the following resistors were replaced with the values indicated. To examine how kirchhoffs current law and voltage law apply to seriesparallel circuits. However, a trend i have noticed in many students is the habit of memorizing rather than understanding these rules. With simple series circuits, all components are connected endtoend to form only one path for the current to flow through the circuit 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 from one end of the battery to the other. If you understand what we are doing in this experiment, you will be all set to do well on the midterm questions about circuits.
University of north carolina at charlotte department of. Sep 02, 2011 what do you notice about the relationship between the three voltage readings v 1, v 2, and v tot in parallel circuits. Provide reasoning to explain the measurements and relationships in circuits. Increase understanding of the relationship of voltage, current and. Science 14 lab 3 dc circuits dartmouth college home. Compare measured and calculated voltages and current for a series parallel rlc circuit at discrete frequencies. In a series circuit, power dissipations add to equal the total. General physics iii lab page 1 of 6 pcccascade experiment. Lab report on series and parallel circuit free essays. What are the common sources of error in experiments involving. And we can see the relationship of the resistances, current and voltage in circuit which related to ohms law. Similar to the thought experiment last week, imagine a trough, such as a rain gutter, various types of materials we can insert into the trough all fit snugly so no water can gush past the edges to change how water flows from the top to the bottom.
Electrical dc series and parallel circuit electrical study. Not required equipment list qty items part numbers 1 acdc electronics lab em8656 2 d cell 1. The equation for finding the resistance of a circuit in parallel can be defined as. In more complicated circuits you will need to generalize the notions of series and parallel. Use an ammeter and voltmeter to take readings in circuits. The main objective is to test the predictions for current, voltage, and resistance relationships for series and parallel circuits. Any electrical circuit can be categorized into three different groups series, parallel and series parallel. Electrical dc series and parallel circuit electrical. Dc electrical circuits lab 7 seriesparallel dc circuits. How did you study the relation between current and voltage in dc circuits. For equipment, each lab station should include a dual channel oscilloscope preferably digital, a function generator and a quality. We will not be concerned with fiveband resistors in this lab.
Use pspice to determine i 1, i 2, i 3, and vo in figure 1 at f 1khz and f 10khz. Series parallel dc circuits analysis wisconline oer this website uses cookies to ensure you get the best experience on our website. Electrical dc circuit definition of electrical circuit. What do you notice about the relationship between the three voltage readings v 1, v 2, and v tot in parallel circuits. However, a trend i have noticed in many students is the. Apparatus equipment to examine the voltage and current flow in a series and parallel circuit of resistors. A direct current dc electric circuit consists of a source of dc electricitysuch as a batterywith a conducting wire going from one of the source terminals to a set of electric devices and then back to the other terminal, in a complete circuit. The purpose of this laboratory is to observe the relationship between voltage drop across not through, and current through not across, electrical circuit elements. Rules of series and parallel circuits are very important for students to comprehend. May 01, 2017 evaluate simple series and parallel circuits to predict changes to voltage, current, or resistance when simple changes are made to a circuit. You will also gain familiarity with connecting circuits and with voltmeters measuring voltage across a circuit element or elementsinparallel and ammeters measuring current through a circuit element or elementsinseries. How did you observe resistance, current, and voltage relationships in series and parallel combinations.
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