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Physics · May / June 2020 · Paper 12 · Question 38

5054Series and parallel circuits

The diagram shows a circuit. What effect does closing the switch have on the readings of ammeters X and Y?

  1. Areading on ammeter X decreases, reading on ammeter Y decreases
  2. Breading on ammeter X decreases, reading on ammeter Y increases
  3. Creading on ammeter X increases, reading on ammeter Y decreases
  4. Dreading on ammeter X increases, reading on ammeter Y increases

As printed in the paper

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Correct answer: C. reading on ammeter X increases, reading on ammeter Y decreases

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