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Physics · May / June 2020 · Paper 11 · Question 36

5054Electromotive force and potential difference

A battery consists of three identical cells in parallel. What is the unit of electromotive force (e.m.f.) and to what is the e.m.f. of the battery equal?

  1. AJ / C; the sum of the e.m.f.s of the three cells
  2. BJ / C; the e.m.f. of one of the cells
  3. CN / V; the sum of the e.m.f.s of the three cells
  4. DN / V; the e.m.f. of one of the cells

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Correct answer: B. J / C; the e.m.f. of one of the cells

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