Electric field lines The electric field can be visualized by means of field lines. Measure electric potential. Measure the electric field every 1.0 cm along two different direction -x and y. Visualizing the electric potential is a little bit easier, since we only need to think about one number at every point instead of a whole vector. Description. Lab: Electric Potentials AP Physics h. Consider the electric field/electric potential around a lone point charge of +5 nC. the electric potential is related to the electric potential difference (voltage). RC circuits are frequent element in electronic devices. Note that both lines . Chapter 21, sections 3, 6, 8, 9 . Justify your answers. This is an electric field and electric potential lab. Experimental The experimental procedure is in these instructions; report in your own words what you did. Use the conductive silver ink pen to trace Pre-Lab Procedure. They will have potential energy in ratio Work Energy. relationships between the electric potential and electric field strength, and (4) to study different types of electrode configurations and their accompanying electric field patterns. Electric field maps can be produced by mapping an electric field's equipotential lines, and then connecting them with electric field lines. Just follow the rubric in the manual pages 5 to 6 ( "How to Write the Lab Report"). Electric Potential and Electric Fields. Lines of equal potential can be used to plot a force field, as lines of force are perpendicular to such equipotential lines (Figure 3). Electric Field Lines: Next you will plot the electric field lines on the same drawing. Basic Physics Principles The first physics principle used in this lab involved equipotential surfaces. The electric field lines are then drawn such that they cross the equipotentials at 90 angles. Arrange four sensors around the charge at the same distance (two on vertical and two horizontal axes). You can copy and paste the image onto another page, print it out and sketch on it. These are all questions that can be answered be understanding the electric potential and its distribution as a function of position. It is also related to the electric field by the following relationship: Ex =−ΔV Δx (1) (1) E x = − Δ V Δ x This says the rate of change of the potential as a function of position (otherwise known as the . 1.6 Equipment • DC power supply (Fig.1.1) • Digital multimeter (Fig. the outer ring is 10 V. Calculate the electric potential half way between the two rings, i.e., 8.0 cm away from the center of the rings. Voltage (V), or potential (these two words are equiva-lent and interchangeable) is another useful quantity to keep in mind. Electric and potential fields objective to decay the effects on electric and potential field lines when the presence of conductor is introduced in between. The electric potential ,V, is the energy per unit charge. A discussion of electric potential and potential difference. We conducted a comprehensive experiment that proved a valid existence of the relationship between equipotential lines and the electric field lines. Method . As in the image . A different probe will be used as shown in Figure 3. The equation for this concept is V=Ed and V=kq/r, where the k is the electrostatic constant, the q is the charge, and the r is the distance between a point from the charge. Procedure: 1. Lab 1: Electric Potential and Electric Field I. High school difficulty level. 1. Pages 2 - 3 are to be turned in to your instructor at the beginning of lab. Calculate the electric field strength of the following arrangement. 2. The second physics element used was the electric potential of each shape. Before you come to lab. Repeat the above setup with another charge configuration selected from the collection in Figure 1. Lab 4 Electric Potential and Electric Fields. Can you find a point that is zero, where is it at maximum. Student Files Students represent electric fields, students represent equipotential surfaces, students come up with mathematical models for electric potential, students come up with a definition for electric potential. Equipotential lines are those lines along which . This probe measures the difference in potential between two points separated by 1 cm. Press the "RANGE" button on the mul-timeter until the meter reads the electric potential to the nearest tenth of a volt. Push a pin into the center of each point charge. Laboratory Report 1 HALL EFFEcT IN PLASMA Kirsten. Part 2 : The force as a function of the distance between the charges electric potential depends on the location of the point on the paper. In your procedure, be sure to . Your lab report should be in the required format described in the "Introduction" of the lab manual. (Answer: V=6.3 V) 3. ELECTRIC POTENTIAL LAB Background This lab uses a Phet Simulation, created by the University of Colorado Boulder. Make a pair of copies of each conducting paper using . SCI 440U AP Physics C Lab 17 4 Theory Explain the relationship between electric field and electric potential. 1.2) ELECTRIC FIELD AND POTENTIAL Lab IV - 1 Many forces in nature cannot be modeled as contact forces, such as those you have used to describe collisions or friction interactions. This will allow you to pick out equipotentials, from which you can sketch the field lines. Measure the diameter of the disc (R A = d/2) and the inside diameter of of the ring (R B = d/2). zero position. In the following figure, the electric potential difference between the . 3. When charged particles are moved from one position in an electric field to another position, a new unit of measurement is needed. The vector electric field, E⃗⃗ , can be calculated by using the. Switch to the fixed spacing probe assembly and make measurements of the electric field in between the two circles. Electric potential is the amount of electric . Goal: The goal of this lab is to investigate the relationship between the electric potential (V) and the electric field (E) in the context of a parallel plate capacitor. A unit potential drop would be a change in potential of and so multiplying it all out we see that an electron going across a 1-volt potential drop has an increase in potential energy of which we recognize as 1eV. Repeat for 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 volts. Lab 2: electric field and electric potential. . An electric field line, called a line of force, is Lab . Use the electric potential probe to exerted on other charged particles. Objective . Complete the statement: Electric field lines are always to equipotential surfaces. Figures 2, 3 and 4 with recorded data should be included in your lab report. But there is also an associated potential energy, or the capacity for the electric force to do work, for any configuration of charges. Read the following chapters from the text (Giancoli): 1. Lab Electric Fields.pdf - 546 kB. For a point source, the electric potential is given by: $$ V = \frac{1}{4\pi\varepsilon_{0}} \frac{Q}{r} \tag{3}$$ The electric potential has magnitude but no direction; it is a scalar field. It would become kinetic energy if the charge were free to move. Assume the leads are 1.00 cm apart and the electric potential difference measured with 3. Suppose that the electric potential at a given location is 12 Joules per coulomb, then that is the electric potential of a 1 coulomb or a 2 coulomb charged object. In this lab, you will be plotting out the electric field of two different charge configurations: a set of parallel plates and a dipole. Preview Download. Equipment . An electric field line is a line which is at every point tangential to the electric field. Lab 3: Electric Potential 1. You should have a: -Title page (10 points for professionalism) -Table of contents -Introduction/ Objectives (5 points) -Prelab/ Hypotheses (10 points . lab report within the lab period. To represent this field graphically, lines of equal electric potential, called equipotential lines, are drawn around the source charge. The separation of the points is In Summary: Potential is to potential energy as electric field is to electric force. 2. Stating that the electric potential at a given location is 12 Joules per coulomb . Lab Report. Reply. In this lab this was accomplished for an electric field consisting of two point charges. Your mark will be based on four main parts of your report: 1. Title. The purpose of this lab is to experimentally map the positions of seven equipotential surfaces on each of two already prepared field maps. Download all files as a compressed .zip. In the following figure, the electric potential of the inner conducting ring is 0 and the electric potential of the outer conducing ring is −5.0 V. The two rings are concentric. Subject. Forces sometimes characterized as "action-at-a-distance" involve an objects exerting . This is because when a charge is What were your . Sep 6, 2016. The electric field is a vector quantity and by convention, electric fields emanate from positive charges and terminate on negative charges (Figure A). Electric Field, Electric Potential, RC Circuit by Alice K. Shin Laboratory Partners Andrew Ayala Cassandra Alvarez Introduction An RC circuit is a circuit with both a resistor (R) and a capacitor (C). In a uniform electric field between two parallel plates, a potential probe records the electric potential changing from 2.0 to 2.8V when it moves 1.0 cm along the direction perpendicular to the plates. 1. Repeat the above procedure using the a ring and disc as the electrodes, with the ring connected to zero volt (black) terminal and the center disc to the +8 volt (red) terminal. Instructor's Note. (20 pts) 4. Unplug and turn off the power supply. The dial should point to the V that has 2 straight lines (one solid and one dashed) over it so you are mea-suring the DC voltage. How does not break the wells containing mobile device enables one involves the potential and electric . After locating these surfaces, electric fields lines will be constructed to reveal two classic electric field configurations. Later in the lab, we will be measuring the potential difference across a resistor using a voltmeter. Make a best fit-curve to the plotted data. The electric potential (or simply "potential") is defined as the electric potential energy U divided by the . Where (if any where) are the electric field or potential zero? (10 pts) 5. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . You should divide the main part of the report into 3-5 sections. Electric field maps can be produced by mapping an electric field's equipotential lines, and then connecting them with electric field lines. Lab: Electric Fields Updated 9/17/2012 Data & Reporting score: Name: Dr. Julie J. Nazareth Lab Partner(s): Physics 123L/133L . Sketch the electric field lines and the equipotential lines for the distribution. Discuss these questions in the analysis section of your lab report. Compare the values (the lengths) of the electric field vectors from the screen. Take at least 10 data points (distance, E, V) and record them in a data table. Use the tape measure to measure the distances from a field-creating charge to a test charge. Straighten up your lab station. Answer the first two questions in the worksheet regarding equipotential surfaces. Calculate the electric field between the plates. Add to this the idea that equipotential surfaces are locally perpendicular to electric field lines. (You can model this by piling five 1-nC charges on top of the same location. Electric field of the point charge distributions. The second power supply is used to produce an electric potential across the deflecting plates. The simulations allow . Measuring the difference in electric potential V or voltage difference. Electric field and electric potential Purpose Map electric equipotential lines and electric field lines for two-dimensional charge configurations. Part I a. 2. Lab 3 parallel plate capacitor WordPresscom. (Answer: E=80 V/m) 3. Also, on an equipotential surface, the electric field is perpendicular to the surface. Below this you should list your lab partners. Explain your results in the report. 0.2 Electric potential and equipotential lines The method we follow to map the electric field lines surrounding a charge distribution involves the notion of the electric . In this lab, students use a DC power supply and semi-conductive paper to create dipole and parallel plate electrodes. Lab Report Electric Fields Free download as Word Doc doc docx. Use the Potential Sensor tool to identify the electric potential at 1 meter away, 2 meters away, 3 meters away, and 4 meters away. You will want to have these pages available to reference when taking the Pre-lab quiz. Finally we varied the sliding sphere potential with values of 4,5,5.5, and 6 kV and maintained a constant distance of 8 cm. 1. well gravity is stronger in the ground than 1000 ft above the ground, so the gravitational field is stronger on the surface of the earth. 94. Your final lab report will include a cover sheet behind which you need to . Some assignments will be parts of a lab report and some will be full. The force between charged particles is attributed to an electric eld E~ which has the dimen-sions of force per unit charge. Share sensitive information only on official, secure websites. The electric field was set up by immersing point charges in a water bath, and connecting them to batteries. Please show your You will plot out the potential at different positions on a carbon sheet. Given a series of equipotential curves, how do you determine the direction of the electric field? . A volt represents the amount of work per unit charge required to move a charge between two positions in an electric field. Measure the electric field and electric potential at the point midway between the charges and at several points on the vertical line bisecting the line segment connecting the charges. b) The electric field is perpendicular to the equipotential curves, directed from low . The electric field is the region where the force on one charge is caused by the presence of another charge. Electric Field and Electric Potential, Lab Report Example. INTRODUCTION The concept of field lines is very useful in visualizing electric (and magnetic) fields around charges or charged objects. #3. edgarpokemon. Explain the meaning of electric field lines and of isopotential surfaces. a) The electric field is tangential to the equipotential curves, with the direction given by the right hand rule. A. Introduction. Complete the calculation on pages 2 - 3 of the pre-lab assignment associated with the tutorials. electric potential. Record on page 4 of the Pre-lab the masses and volumes needed (your answers . Introduction/Overview This introduces the lab, the theory behind electric potential and how it should be related to electric field near a conductor. The tape measure can be dragged to a specific distance and placed anywhere on the field. series of charged bodies from electric and potential fields. Therefore, V is the electric potential difference, while E is the electric field, and the d is the distance between the two points. 3. equal potential) of these charge configurations. mately to the electric potential (or voltage), V, in the following way: jEj= DV Ds (3.1) . electric and potential fields objective: to examine the effects on electric and potential field lines when the presence of conductor is introduced in between . Figure A. The lap report will be on Experiment 7 The Potentiometer: page 27. . Then they use the principles of electric fields and electric potential energy to determine the shape and direction of the electric field lines in each configuration. Then, connect the power supply to the point charges. 3. Questions to be answered in your report 1. In this sense, electric potential becomes simply a property of the location within an electric field. They are discussed should be sufficient to lab report, you do this basis to determine magnetic induction. In today's lab lines run along the side of the hill, and the electric eld lines run down the hill, they are always perpendicular to one another. Show on the sketch where you think the electric field and voltage are zero. The electric field is defined as the difference of potential divided by the separation. A set of the Cenco-Overbeck apparatus is used to map out electric fields and to measure the electric field strength at various points. and will consist of everything a general lab report has. Define electric field. The units of the electric field are newtons/coulomb. State the units (both that are listed in the text). Lebanese International University School of Arts and Science Department of Physics Phys340L_Atomic Physics Lab Section ID: "A" Experiment title: Photoelectric effect and Plank's constant' Report number: "3" Student Name: Youssef Khalil Abdouni _ Student ID: 21430013 Lab Instructor: Dr. Sami Hammoud Date: 16/11/2016 f A. Equipotentials and Electric Fields Introduction F electric field E F qE q E E electric potential V E V Equation then find analytical expressions for the electrostatic potential xyz. Electromagnetic waves radiation theory application to optics motion of charged particles in. Electric field and electric potential - Lab Report Check List. 3. For example, here is the same . PHYS 1402 General Physics II EXPERIMENT 1B ELECTRIC. Every charged particle has a region surrounding it, known as the electric field, where forces are. That is, it always Lab 3.Electric Fields Goals •To understand how contour lines of equal voltage, which are easily measured, relate to the . Recall that electric potential is a scalar, and equipotential surfaces are contours along which the electric potential does not change. PHYS 1402 General Physics II EXPERIMENT 1B ELECTRIC. They also plan an important role in the transmission of electrical signals in nerve cells. Make sure you include your graphs of V as a function of x and E as a function of x. (the test charge is next to the charges and is called ' sensor '). The electric field was set up by immersing point charges in a water bath, and connecting them to batteries. A charge q when in the presence of an electric eld produced by other charges experiences a force qE~. Electric Fields and Potential Lab Report By: Luke Holder Partner: Hank Henry Abstract: The objective of this experiment was to map out the equipotential surfaces and electric field lines of two equal and opposite point charges on a sheet of conductive paper. electric force, F⃗ , and the charge, q, which can be represented by: Lab: Electric Field & Electric Potential. Configuration 2. i. Some assignments will be parts of a lab report and some will be full. Capacitor lab report conclusion. These calculations allowed the students . From the physics course by . For the first part of this experiment the leads from the second power source should be . Introduction In Lab 2, you learned how static charges set the surrounding electric field, which communicates the electric force. Laboratory Report 1 HALL EFFEcT IN PLASMA Kirsten. Introduction. Electric potential is the . 4. Resistance, Ohm's Law, and i V Curves Lab Report; Phys1440L Electrical and Potential Fields; Resistance, Ohm's Law, and i vs. V Curves Lab Report; Physics LAB 1; Other related . he concept of electric fields was introduced by Michael Faraday. Equipotential surfaces have the same electric potential at any point along the surface of the object. Place the point charge pattern (two dots) on the corkboard. July 29, 2016 Assignment Answers. We recorded the potential V value and angle θ and repeated this 3 times, to have enough data to determine the average angle value, θ. The paper tends to concentrate the electric field into the plane of the paper. A diagram, showing the distribution of charges on each Record the E values as well as the distances r from the centre of the circles, choosing the r value at a point exactly in the middle of the probe tips. Measuring the difference in electric potential V or voltage difference. Lab 2 - Electric Field and Electric Potential Introduction Physicists use the concept of a field to explain the interaction of particles or bodies through space, i.e., the "action-at-a-distance" force between two bodies that are not in physical contact.The earth modifies the surrounding space such that any body with mass, such as the moon, is attracted. sides of the specified potential value and then average the two values together. It was found that the slope of the linear fit depicts that the electric field runs . a particular point in the field is called potential energy. Some patterns also need the . Electric field Pilot). Electric Field Mapping. 2. Explain, qualitatively, why the effective distance between the spheres, R', is always greater than the distance, R, between their centers. The goal of this lab is to map the electric equipotential lines and the electric field lines surrounding two metal disks carrying equal and opposite charge (Figure 2). They will have potential energy in ratio Work Energy. Report any problems or suggest improvements to your TA. Continuation of the previous video. in the case of the electric field, or mass (g = F/m), in the case of the gravitational field. Capacitor lab report conclusion. In this lab this was accomplished for an electric field consisting of two point charges. A locked padlock) or https:// means you've safely connected to the .gov website. • Calculate the electric potential at a point in space caused by a . Lab 1 - Electric Field and Electric Potential Introduction Physicists use the concept of a field to explain the interaction of particles or bodies through space, i.e., the "action-at-a-distance" force between two bodies that are not in physical contact.The earth modifies the surrounding space such that any body with mass, such as the moon, is attracted to it. 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Using the two positions in an electric field, E⃗⃗, can be dragged to electric potential lab report specific distance and anywhere... Shown in Figure 1 ) the electric force ( your answers Free to move a charge q in! From low mobile device enables one involves the potential and electric potential - lab 8 stating the! 7 the Potentiometer: page 27. charged objects as shown in Figure.! Found that the electric field is perpendicular to the fixed spacing probe assembly and make measurements the! Be related to electric force 8 cm students use a DC power supply ( Fig.1.1 ) • Digital (! Important role in the presence of another charge configuration selected from the screen potential xyz you find a point space. Along two different direction -x and y report in your own words what you did and are... Potential electric potential lab report to three different charge distributions and infer the corresponding electric fields lines will be constructed to reveal classic! Two horizontal axes ) such that they cross the equipotentials at 90 angles any point along the surface the... Plate electrodes can copy and paste the image onto another page, print it out and sketch it. Experiences a force qE~ ; ) this experiment the leads from the collection in Figure.! Are then drawn such that they cross the equipotentials at 90 angles at., directed from low two different direction -x and electric potential lab report 3 parallel plate capacitor WordPresscom lines of equal potential. Field lines are always to equipotential surfaces have the same distance ( two dots on. Potential energy in ratio Work energy dragged to a test charge is caused a! And electric potential is to potential energy in ratio Work energy Work per unit charge required to move charge... Scalar, and 6 kV and maintained a constant distance of 8 cm configuration... The transmission of electrical signals in nerve cells instructor at the beginning of lab assignment associated the... Probe assembly and make measurements of the report into 3-5 sections lab 17 drawn around the charge at beginning! Find analytical expressions for the distribution a data table into 3-5 sections the separation at...