Physics 5054 · O Level · Electrical quantities

Electrical quantities — practice question

$V$ represents potential difference, $I$ represents current, $R$ stands for resistance, and $t$ denotes time. Which expression has the units of energy?

  • A$It$
  • B$I^2R$
  • C$VIt$
  • D$\frac{V^2}{R}$

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