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

Potential difference and power — practice question

In a circuit, the potential difference across points X and Y is $20\text{ V}$. The charge carriers take $15\text{ s}$ to travel from X to Y. During this interval, their energy changes by $12\text{ J}$. Determine the current between X and Y?

  • A$0.040\text{ A}$
  • B$0.11\text{ A}$
  • C$9.0\text{ A}$
  • D$25\text{ A}$

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