Equipotential Lines Essay

982 words - 4 pages

Equipotential Lines

Nhung Pham
Physics 1108 - General Physics Laboratory II
CRN 10089
August 30, 2012

The purpose of this experiment was to plot the equipotential lines and construct the electric fields lines to determine the relationship between them.

There is an electric field in any region where there is a force on an electric charge at rest. It is convenient to represent an electric field by the lines of force. The direction of the lines is the direction of the force on a positive electric charge in the field. The electric field intensity at any point is the force that would be exerted on a unit positive charge, +q, at that point ...view middle of the document...

4. Connect the voltmeter to an electrode and attach the end terminal to electrode A.
6. Place the other terminal at point C that’s between A and B with 2 volts potential difference.
7. Move the lead probe around the conducting paper for the Equipotential Lines.
8. Mark the equipotential points on graph paper.
9. Draw lines to connect the points.
10. Draw Equipotential Lines with potential difference of 4V, 6V and 8V.
11. Draw five or more electric force lines between the ends of electrodes A and B (perpendicular to the Equipotential Lines).
12. Mark the Electric Field Vector (E) at each intersection between the Equipotential Lines and the Electric Field Lines.
13. Record the voltage of the equipotential lines at each coordinates multiples of two.
14. Use Excel to plot the Equipotential Lines.

Figure 1. Setup for the Mapping the Electric Potential and Electric Field experiment.

Measurements were measured based on the placement of the lead probe at various coordinates multiples of two. These resulted potentials are measured in voltages.

Table 1. Data of Equipotential Points in Voltage at various coordinates.
| | X Axis |
| | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 |
Y Axis | 2 | 3.11 | 3.35 | 3.7 | 4.3 | 5.05 | 5.75 | 6.47 | 6.94 | 7.41 | 8.11 | 8.38 | 8.7 | 8.75 |
| 4 | 2.87 | 3.15 | 3.5 | 4.21 | 4.95 | 5.61 | 6.47 | 7.16 | 7.49 | 8.49 | 8.6 | 9.08 | 9 |
| 6 | 2.53 | 2.72 | 3.3 | 4.02 | 4.84 | 5.49 | 6.47 | 7.03 | 7.71 | 8.7 | 8.9 | 9.24 | 9.07 |
| 8 | 2.08 | 2 | 2.95 | 3.7 | 4.73 | 5.34 | 6.47 | 7.26 | 8.1 | 9.06 | 9.7 | 9.62 | 9.2 |
| 10 | 2.69 | 0 | 2.49 | 3.6 | 4.55 | 5.22 | 6.47 |...

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