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

Potential difference and power — practice question

With respect to energy transfer $W$ and charge $q$, what is meant by potential difference (p.d.) and electromotive force (e.m.f.)?

  • Ap.d.: $\frac{W}{q}$; e.m.f.: $\frac{W}{q}$
  • Bp.d.: $\frac{W}{q}$; e.m.f.: $Wq$
  • Cp.d.: $Wq$; e.m.f.: $\frac{W}{q}$
  • Dp.d.: $Wq$; e.m.f.: $Wq$

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