Why are the equipotential lines parallel between the plates but not parallel outside of the plates? Then click on the dark area once where proportionally the left point is. Before finding the equipotentials, however, you must determine the voltage between the two electrodes.
We placed a white piece of paper under the four legs and secured it with masking tape. This was done two more times for two other charge plates. It is important to note that any radial line field line is perpendicular to all equipotential surfaces spheres around a point charge.
For our lab, we experiment with three different kinds of these boards, each having a different configuration of electrodes.
Questions In your lab report, you should write meaningful explanations for any similarities or differences between the field line configurations for the two charge distributions, considering the relevant physics theory for this lab.
Connect the RED positive terminal of the voltmeter to the handheld probe, and the BLACK negative terminal to the stationary probe with the attached base.
Again, assume an uncertainty of 5 mV. Be sure to include some lines that may extend outside of the region between the two parallel plates. Using this analogy, in which regions of higher electric potential correspond to higher elevation, and regions of lower electric potential correspond to lower elevation, the direction of motion of a test charge in an electric field now makes sense.
One was the interference of the metal in the table. Are any of these equipotentials straight, or are they all curved? Then make a - vertical line by placing 8 -2 units of charge 0. The field lines and equipotential lines around an electric dipole are shown below: I like the part about the potential energy along the equipotential lines.
After drawing the maps it is clear why electric field mapping is similar and can be analogous with topographic maps. By probing the area between the electrodes with the digital voltmeter, you will be able to find sets of points having zero potential difference between them, i.
When test charges are placed around a positive charge, they will be repelled and move radially outward. After all the null points were found a curved was drawn between them.
The resistors were connected to terminals of a power supply and each resister cut the amount of power suppled to the next by one. Rather, most of them are curved.
However, the configuration of the electric field lines and equipotential lines will largely be determined by the shape of the sources of charge the electrodes. Do this by adjusting the charge selection window to -1 unit.
Place the stationary probe on a center point, and find other locations yielding a 0 V potential difference with the center point, mark these locations on the photocopy, and connect them.
The points must lie along the same electric field line, however, for the calculation to work. Be sure to discuss in your lab report why these electrodes are equipotentials! For the electric dipole configuration, are any of the equipotential lines straight?
Then the lines are drawn in areas with equal voltage to the reference points. This concept may be used to draw field lines around any type of charge distribution if equipotential lines are first determined. One was how the galvanometer was read.
So at the first resister, if the supply was giving 8 volts, there would be the full 8 volts.
For a point source, the electric potential is given by: In other words, the electric field is the surrounding charges which create an electric field around a given point. This might have caused some error in the mapping and caused the electrodes not be exactly where they used to be when the plates were new.
Turn on the voltmeter, and set it to the 20 V scale. When all 16 points are placed fairly accurately, you will see a nice symmetry. Once you have drawn the equipotential lines on your photocopy, you should be able to sketch the electric field lines.PHY General Physics III page 1 of 4 PCC-Cascade Lab #2: Mapping the Electric Field OBJECTIVES • To map the equipotential lines and electric field for.
The electric field is a vector quantity whose direction is taken to be the direction that this -Overbeck electric fields mapping apparatus with UCenco -shaped mapping probe, (2) sets of parallel, point, and circle electrode configurations painted on Electric Fields Experiment—The Cenco-Overbeck Apparatus.
Chelsea A. Buckner Electric Field Mapping Experiment 1 Wednesday p.m. [ELECTRIC FIELD MAPPING] Physics Gwen. Arrange positive and negative charges in space and view the resulting electric field and electrostatic potential.
Plot equipotential lines and discover their relationship to the electric field. Create models of dipoles, capacitors, and more!
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Physics Lab Report Joule Equivalent of Electrical Energy. uploaded by. Emily Gatlin.5/5(8). Purpose: The purpose of this lab was to get an introduction to mapping electric killarney10mile.com electric field is identified by a capital E and at a certain point it equals the force on a test charge divided by the amount of the charge (E=F/g).Download