Question

potential difference and electromotive force are same ? Explain​

Answer 1

See potential difference is the difference generated by the battery that is attached to any circuit which brings the electron in motion.

Same process is also done by electromotive force so both of them are same

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Answer 2

The emf is the potential difference between the terminals of a battery when no current is flowing through an external circuit when the circuit is open.

The potential difference is the voltage across the terminals of the battery when the current is being drawn from it to an external.