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Physics · May / June 2023 · Paper 12 · Question 29

5054Series and parallel circuits

A student has three 15 Ω resistors. She connects the resistors together in different arrangements. What is the minimum resistance and what is the maximum resistance of the arrangements that the student can produce?

  1. Aminimum resistance / Ω: 5.0; maximum resistance / Ω: 15
  2. Bminimum resistance / Ω: 5.0; maximum resistance / Ω: 45
  3. Cminimum resistance / Ω: 15; maximum resistance / Ω: 30
  4. Dminimum resistance / Ω: 15; maximum resistance / Ω: 45

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Correct answer: B. minimum resistance / Ω: 5.0; maximum resistance / Ω: 45

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