Lab- Electric Field Mapping

Prediction Questions:

1. Sketch the conductor configuration on a separate white grid sheet. Select any two of the 5 locations marked in the previous step and draw your predicted equipotential curves with a dashed line.

2. Do you expect any of the equipotential curves to intersect? If yes then which are more likely intersect, the curves closer to the COM terminal point, the curves closer to the +5V point or the curves in between the two points?

3. How does the measured voltage change as both probes are moved closer together?

4. How does the measured voltage change as both probes are moved farther apart and beyond the 2 conductor?

5. What should the voltage be when each probe is on a conductor?

6. What should the voltage be if both probes are on the same conductor and moved to different locations on the conductor?

7. What would the voltage be if both probes are placed at the same point at the 5 originally selected locations between the 2 conductors?

Analysis Question:

1. What is the shape (2-dimentional) of the electric potential lines?

2. Is this shape related to the shape of the charge holding conductor?

3. Sketch the equipotential lines for an elliptically (symmetric oval) shaped conductor holding charge?

4. What do you think the equipotential lines and electric field lines for a tear-drop shaped conductor carrying charge?