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An electron moves from point i to point f, in the direction of a uniform electric field. During this displacement:A. the work done by the field is positive and the potential energy of the electron-field system increases B. the work done by the field is negative and the potential energy of the electron-field system increases C. the work done by the field is positive and the potential energy of the electron-field system decreases D. the work done by the field is negative and the potential energy of the electron-field system decreases E. the work done by the field is positive and the potential energy of the electron-field system does not change |
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Answer» B. the work done by the field is negative and the potential energy of the electron-field system increases |
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