A cell is described as having an electromotive force (e.m.f.) of 6 V.
What does this mean?
1 )
1 coulomb of charge always dissipates 6 J of energy in the internal resistance of the cell.
2 )
1 electron gains 6 J of energy when passing through the cell.
3 )
There is a potential difference of 6 V applied across any external circuit connected to the cell.
When 1 coulomb of charge passes through the cell, 6 J of chemical energy is transformed.
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