Electricity-electromotive force and potential difference
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4 Terms
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Electromotive force is
The work done by the source in driving a unit charge around a complete circuit
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SI unit of electromotive force
Volts (V)
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Potential difference is Measured by a
Voltmeter; connected parallel to component; + terminal to + terminal and - terminal to - terminal
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Potential difference across a component is
The work done to drive a unit charge through the component.
Note 
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