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Electric Fields Lab

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Electric Fields

Questions: A. What generalizations can you make from this exploration? a. There should be an equal amount of positive and negative charge within the water. If the space was equal on both sides, then the potential lines should equal, but because there was more space between the upper charge and the wall of the container, the charges were more compact than the lower charge. The positive charge should have a higher amount of energy. B. Where would a positive test charge have the least potential energy? b. A positive test charge would have the least potential energy when it gets closer to the negative test charge because as it gets closer, the potential energy of the positive charge decreases. C. How much energy must you add to the system to move 1 electron 1 m in a direction along one of the equal potential lines? c. In order to move one electron one meter in a direction along one of the equal potential lines, you have to double the amount of energy in the electron just to get it to barely move. D. If lightning strikes a tree 20 m away would it be better to stand facing the tree, your back to the tree, or your side to the tree? Assume your feet are a comfortable shoulder width apart. Explain your answer. d. In order to decrease the electric potential difference, it is best to stand with both feet at equal distances away from the lightning tree so standing sideways would increase the electric potential difference. That leaves facing the tree and facing away from the tree and to protect your eyes from the flash of the lightning, facing away would be best.

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