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

Potential difference and power — practice question

A cell with e.m.f. $E$ transfers a charge $Q$ to an external circuit. Which statement is correct?

  • AThe energy dissipation in the external circuit is $EQ$.
  • BThe energy dissipation within the cell is $EQ$.
  • CThe external resistance is $EQ$.
  • DThe total energy dissipation in the cell and the external circuit is $EQ$.

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