Physics > EXAM > PH 122 Lab 2: Electric Field and Potential(Lab+2+Tables+and+Questions and all the correct answers) (All)

PH 122 Lab 2: Electric Field and Potential(Lab+2+Tables+and+Questions and all the correct answers)

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Pre-Lab Questions 1. How are electric potential and electric field similar? How are they different? 2. Draw the equipotential lines for a single, positive, charge. 3. If you were to walk on an ... equipotential line, how would your electric potential change over time?. 4. What does it mean when equipotential lines are closer together? What does it mean when they are farther apart? 5. What direction do electric fields travel? 6. How can you tell whether an electric field is strong or weak by observing an electric field map? 7. What would the electric field lines look like if the electric field was constant? 8. Can there be a point in space where there is an electric field but no electric potential? Explain you answer. 9. Use Figure 5 to answer the following questions: Figure 5: Charged particles P (left) and Q (right). a. Are charges P and Q negative or positive? How do you know? b. Which particle has the highest magnitude of charge? How do you know? 10. In the following experiment you will create an electric field that contains charged objects of various shapes. Given the two field maps below, if the left charge (blue rectangle or circle) is positive and the right charge is negative, predict the electric field lines by drawing them over the field maps. Either scan your drawings or take a digital photo that you can insert into your report. Experiment 1: Mapping Electric Potentials – Post-Lab Questions 1. Did your predictions from Pre-Lab Question 10 match with your data analysis? Use your results to support your answer. 2. Use the data collected to draw your equipotential lines by drawing a “smooth” curve connecting the 5 to 8 data points with the same potential as described in step 20, for each equipotential. Label what potential each equipotential line represents. You may simply complete your equipotentials on Figures 8b and 9b, or bnjjju clean with Figures 10a and 10b. Insert your figures here by scanning or photographing them. Figure 10: Equipotential mapping areas for post-lab questions 1 and 2. 3. Add electric field lines to the Figure 10 field maps. Don’t forget that electric fields are vectors and need to have a direction. Insert your figures here by digitally scanning or photographing them. Hint: Use a different colored writing utensil to help make the distinction between the equipotential lines and the electric field lines. 4. Did your predictions from Pre-Lab Question 10 match with your data analysis? Use your results to support your answer. [Show More]

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