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

Kirchhoff's laws — practice question

In the circuit diagram, the cells have negligible internal resistance and the galvanometer shows zero. What is the resistance of resistor $R$?

  • A$2.0\,\Omega$
  • B$6.0\,\Omega$
  • C$12\,\Omega$
  • D$18\,\Omega$

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