Physics 9702 · AS & A Level · Practical circuits

Practical circuits — practice question

A source with e.m.f. $9.0\,\text{mV}$ and internal resistance $6.0\,\Omega$ is connected across a galvanometer whose resistance is $30\,\Omega$. What current flows in the galvanometer?

  • A$250\,\mu\text{A}$
  • B$300\,\mu\text{A}$
  • C$1.5\,\text{mA}$
  • D$2.5\,\text{mA}$

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