Question

difference between terminal potential and emf.
just need to clear a little doubt.

Answer 1

EMF is equal to potential difference between plates when the battery is not connect to any external circuit potential difference is due to charge accumulation on the plates EMF produced a potential difference between the two terminal which drives the current

Answer 2

Hello friend this is your answer.

EMF is equal to potential difference between plates when the battery is not connected to any external circuit.Potential difference is due to the charge accumulation on the plates.

So emf produces a potential difference between the two terminals which drives the current.