Good day, mates. I was wondering if anyone could me out with this circuit question involving two different EMFs. I can't seem to figure out how to do it and I don't quite know where to begin. What must the emf be in order for the current through the 7.00 Ohm resistor to be 1.78 A? Each emf source has negligible internal resistance. I've exhausted all but one try for this question and I was wondering if anyone can shed some light on it. Cheers.