But potential difference exists when there's no current drawn too. That's just more confusion. One aspect I'd noticed is that EMF doesn't necessarily have a co

But potential difference exists when there's no current drawn too. That's just more confusion. One aspect I'd noticed is that EMF doesn't necessarily have a corresponding potential difference. Eg. a generator with the output short-circuited still has the same EMF as if it was open circuit but potential difference is zero or near-zero across any two points in its windings or circuit.