Hello, We know that the electric field generated by a changing magnetic field is not conservative. But, for example let' say we have an EMF source that has an internal resistor, the voltage drop across the source is equal to EMF-rI where r is the internal resistance. My question is, inside the EMF source, we have non-conservative electric field but also do we have conservative electric field due to its internal resistor? Please if someone didn't understand the question tells me. Thank you.