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

Potential difference and power — practice question

The potential difference across a resistor is $12\,\text{V}$. The current through the resistor is $2.0\,\text{A}$.\n\nA charge of $4.0\,\text{C}$ moves through the resistor.\n\nWhat is the energy transferred in the resistor and the time taken for the charge to move through the resistor?

  • Aenergy $3.0\,\text{J}$; time $2.0\,\text{s}$
  • Benergy $3.0\,\text{J}$; time $8.0\,\text{s}$
  • Cenergy $48\,\text{J}$; time $2.0\,\text{s}$
  • Denergy $48\,\text{J}$; time $8.0\,\text{s}$

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI