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Physics (AS & A Level) · Oct / Nov 2023 · Paper 11 · Question 37

9702Potential dividers

A potential divider consists of two resistors of resistances R1 and R2 connected in series across a source of potential difference (p.d.) Vin. The p.d. across R1 is Vout. Which changes to R1 and R2 will increase the value of Vout?

  1. AR1 doubled, R2 doubled
  2. BR1 doubled, R2 halved
  3. CR1 halved, R2 doubled
  4. DR1 halved, R2 halved

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Correct answer: B. R1 doubled, R2 halved

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