Electrical sources and internal resistance. Finding the EMF and internal resistance of a cell. A voltmeter and variable resistor. Watch this video to see how the EMF and internal resistance
The EMF or electromotive force is the energy supplied by a battery or a cell per coulomb (Q) of charge passing through it. The magnitude of emf is equal to V ( potential difference ) across the cell terminals when there is no current flowing through the circuit.
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what is emf of a cell