Physics 9702 · AS & A Level · Potential difference and power

Potential difference and power — practice question

An electric kettle has a power rating of $2.0\,\text{kW}$, which gives the rate at which energy is delivered to the heating coil inside the kettle. The coil's resistance is $5.0\,\text{k}\Omega$. What current flows in the coil?

  • A$0.40\,\text{A}$
  • B$0.63\,\text{A}$
  • C$1.6\,\text{A}$
  • D$2.5\,\text{A}$

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