Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

An ammeter and an $18\,\Omega$ resistor are joined in series to a battery. The ammeter reads $0.50\,\text{A}$. What is the electromotive force (e.m.f.) of the battery?

  • A$9.0\,\text{N}$
  • B$9.0\,\text{V}$
  • C$36\,\text{N}$
  • D$36\,\text{V}$

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