(a) Rank the potentials VA, VB, VC, VD from least to greatest, identifying any that are equal. Explain the rankin USING PHYSICS REASONING (not calculations; we'll check the math in other parts of this problem.) Physics reasoning includes things like whether you are getting closer or farther from positive sources, moving with or against the net field, and so on. (b) Find the potentials at points A and D, and from that the potential difference between A and D. Your answers will be in terms of k, Q, and d. Is your answer consistent with your ranking? (c) Find the potentials at points B and C, and from that the potential difference between those points. Your answers will be in terms of k, Q, and d. Ils your answer consistent with your ranking? (d) Find the potentials at points A and B, and from that the potential difference between those points. Your answers will be in terms of k, Q, and d. Is your answer consistent with your ranking? (e) Find the potential differences for the test point pairs in parts a, b, and c if the source on the right were negative, as shown below.

(a) Rank the potentials VA, VB, VC, VD from least to greatest, identifying any that are equal. Explain the rankin USING PHYSICS REASONING (not calculations; we'll check the math in other parts of this problem.) Physics reasoning includes things like whether you are getting closer or farther from positive sources, moving with or against the net field, and so on. (b) Find the potentials at points A and D, and from that the potential difference between A and D. Your answers will be in terms of k, Q, and d. Is your answer consistent with your ranking? (c) Find the potentials at points B and C, and from that the potential difference between those points. Your answers will be in terms of k, Q, and d. Ils your answer consistent with your ranking? (d) Find the potentials at points A and B, and from that the potential difference between those points. Your answers will be in terms of k, Q, and d. Is your answer consistent with your ranking? (e) Find the potential differences for the test point pairs in parts a, b, and c if the source on the right were negative, as shown below.

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