Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

A resistor with resistance $R$ is connected to a battery of electromotive force (e.m.f.) $V$. A current $I$ flows through the resistor. The resistor dissipates power $P$. Over a time $t$, the energy transferred is $E$. Which expression is the correct one?

  • A$E = IVt$
  • B$E = Pt$
  • C$P = VIR$
  • D$P = \frac{V}{R}$

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