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B. [14 pts] The diagram at right shows the electric field lines associated with three charges Q, on the top and Qu at bottom left, and Qc at bottom right. i. [3 pts] Determine the signs of the three charges. Explain your answer. ii. [3 pts] Rank the magnitudes of charges QA. Qs, and Qc from largest to smallest. Explain your answer. 111. [4 pts] Rank the magnitude of the electric field at the three points 1, 2, and 3. Explain your answer iv. [4 pts] On the diagram above, draw vectors to show the direction of the electric field at the three points 1, 2, and 3. Explain your answer