Physics 5054 · O Level · Electromotive force and potential difference

Electromotive force and potential difference — practice question

A student sets up the circuit shown. The switch $S$ is then closed. What does the voltmeter read?

  • A$1.0\,\text{V}$
  • B$3.0\,\text{V}$
  • C$4.5\,\text{V}$
  • D$6.0\,\text{V}$

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