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Electric Field Plotter
Bob Nelson
College of New Caledonia
There's something about the electric field that makes it tough for students to understand. You can't touch it. You can't smell it. You can't taste it. But you can see it - if you use Electric Field Plotter.
An excellent tool for visualizing electric field and equipotential lines, Electric Field Plotter allows you to place up to nine point charges of any size on a plane. Then, after a quick click on a charge, the electric field lines emanating are clearly displayed. Equipotential lines can be plotted similarly. Plotting lines in this manual mode is ideal for initial explorations - you can answer commonly asked questions: "Do field lines cross?" "How are equipotential and field lines related?" "Where does the field get smaller or larger?"
Once you've explored some of these basic issues, you'll want for a more systematic display of field lines. Electric Field Plotter will do that, too. By automatically plotting field lines at user-specified increments about a charge, textbook-like plots can be easily created. Similarly, you can plot equipotential lines at any desired interval, much like a topographic map. Furthermore, any charge layout and its associated lines can be stored in a file and retrieved at a later time.
A unique feature of Electric Field Plotter is the automatic search for nulls in the electric field. You can choose an arrangement of charges, and Electric Field Plotter will find the spatial locations where E=0.
Your students can study the quantitative variations in the electric field and electric potential using Electric Field Plotter as well. For example, the asymptotic 1/r3 field dependence of a dipole is easily observed.
Whether you employ it as a lecture-demonstration tool or a vehicle for student investigations, Electric Field Plotter will make this obscure topic more palatable. 38 pp.
System Requirements:
Your computer system and hardware configuration should be a PC computer with the following features:
- CGA, EGA, VGA, or SVGA color graphics
- Minimum memory of 512 K
- DOS 3.3 or higher
- Math coprocessor (recommended)
- Mouse (recommended)
- Printer with graphics capability ( recommended ); please see Appendix A
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- DOS
ISBN 1-56396-174-1 - DOS
| Single copy | $100.00 |
| High School Site License | $250.00 |
| 10-copy lab pack | $400.00 |
© 1996 by Physics Academic Software Publishing Organization. All rights reserved.
- Part of the ELECTRICITY & MAGNETISM SERIES
MORE PICTURES- Screen with 3 charges
- Main Data Entry Menu
- Electric Field Lines
- Equipotential Lines
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