Difference Between Potential Difference and EMF
The basic difference between the Potential Difference and EMF is that EMF is the potential difference across the terminals of the battery when no current is drawn from the circuit while Potential Difference is valid when current is being passed through an appliance or a load. EMF gives an idea of the conversion of any form of energy whether chemical, mechanical, or anything else to electrical energy per unit of charge but potential difference gives an idea of work done by electrical energy per unit of charge.
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EMF Formula
Electromotive Force often called EMF is the potential difference across the terminal of a cell or a battery when no current is being drawn from it. EMF is a misnomer i.e., it is actually a Potential Difference rather than a force but at the same time, EMF also differs from the Potential Difference in some manners. In this article, we will learn about EMF i.e., Electromotive Force, its formula and how does it differs from the potential difference in detail.