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PHYS 183 Exploring Electric Potential, Electric Field and Distance Relationships Outcomes: Determine the relationship between electric potential and distance for a point charge.Determine the relationship between the electric potential and E Field strength in a region. Procedure: Open Charges and Field simulation http://phet.colorado.edu/en/simulation/charges-and-fields andclick Run Now. Once the simulation opens, check the box next to grid and next Show numbers. Part 1 First, explore by placing a 1 nC positive point charge in the middle of the screen. Move the voltageprobe box (shown to the right) to different locations near the charge. How does the voltage number change? How does the color in the circle with the cross-hairs change?

Replace the positive pointcharge with a negative point charge. To remove charges, drag them back into their box. How does what the voltage probe box show differ with the negative charge? How is it the same? Different: Same: Voltageis another word for electric potential. Electric potential is a characteristic of the distribution of source charge, the+/- 1 nC point charge in the examples above. The electric potential expressesthe work a source charge distribution does on a point charge as the point charge’s position changes. The electric field expresses the force a source distribution exerts on a point charge and work doneis proportional to force exerted. Thus, electric potential is related to electric field. Determine the V vs. r relationship for a point charge. This means making a hypothesis, taking data from thesimulation, making a graph on Excel (or similar), finding the best-fit relationship. (Click on show numbers and tape measure to measure the distances from a field-creating charge to a test charge. Thetape measure can be dragged to a specific distance and placed anywhere on the field.) If then because Best fit relationship (be specific): Theoretical support for this relationship (e.g., supporting...