Physics (AS & A Level) · Oct / Nov 2024 · Paper 13 · Question 36
The diagram shows a circuit. [circuit diagram: cell and resistor in a dashed box, switch, lamp, voltmeter connected across the lamp] Which statement about the circuit is not correct?
- AElectromotive force is the energy transferred per unit charge.
- BEnergy is transferred from chemical potential energy in the cell to other forms when the switch is closed.
- CThe electromotive force of the cell is greater than the terminal potential difference when the switch is closed.
- DWhen the switch is open, the voltmeter measures the electromotive force of the cell.
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Correct answer: D. When the switch is open, the voltmeter measures the electromotive force of the cell.
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