Physics 0625 · IGCSE · Electric circuits

Electric circuits — practice question

A resistor of resistance $R$ carries a current $I$. The potential difference (p.d.) across it is $V$. Which equation shows the power $P$ dissipated in the resistor?

  • A$P = IR$
  • B$P = IV$
  • C$P = \dfrac{I}{R}$
  • D$P = \dfrac{I}{V}$

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