Physics – 4.2.3 Electromotive force and potential difference | e-Consult
4.2.3 Electromotive force and potential difference (1 questions)
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Answer:
The voltmeter reading of 2.5V indicates the potential difference (p.d.) between the two terminals of the cell. This is the electrical potential difference that exists across the cell's terminals when it is connected in a circuit. It shows the 'push' or 'force' that drives the current through the circuit. A reading of 2.5V means that there is a potential difference of 2.5 volts between the positive and negative terminals of the cell.