About. Transcript. EMF is the work done by the cell in moving a coulomb of charge across its terminals. It represents the energy transferred per coulomb to the charges. Some of this energy is lost as heat due to internal energy. Hence the net energy gained by the charge = the emf - heat lost.
EMF or electromotive force is equal to the potential difference across the terminals of the cell when no current is present. EMF is the energy provided by a cell or battery per coulomb of charge passing through it and it is measured in volts(V).
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.
EMF of a Cell: The maximum potential difference which is present between two electrodes of a cell is defined as the electromotive force of a cell or EMF of a cell. It’s also known as the net voltage between the half-reactions of oxidation and reduction.
The EMF (electromotive force) of a cell is the maximum potential difference between two electrodes of a cell. EMF is measure by combining two separate half cells. The \text {E}^ {\varnothing} of individual half cells can also be used to predict overall chemical reactions. Cell Potentials.
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what is emf of a cell
