Physics 9702 · AS & A Level · Kirchhoff's laws

Kirchhoff's laws — practice question

The circuit shows three identical cells, each with electromotive force (e.m.f.) $E$ and internal resistance $r$. What potential difference exists between points X and Y?

  • A$0$
  • B$E$
  • C$2E$
  • D$3E$

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