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18-02-2018
Physics

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What is the difference between electromotive force and potential difference?
And how does the potential difference affect the current?

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18-02-2018

The electric charge that has been separated creates an electric potential difference that can be measured with a voltmeter between the terminals of the device. The magnitude of the emf for the battery (or other source) is the value of this 'open circuit' voltage.

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