1. The problem statement, all variables and given/known data http://www.webassign.net/giancoli5/19_31alt.gif I was given this circuit and told that R=6.6Ω. Based on the information, I was asked to find the terminal voltage. 2. Relevant equations Terminal V=Emf-ir Kirchoff's laws 3. The attempt at a solution I used Kirchoff's laws to find i=.61 A. From there, I don't understand how to find terminal voltage without knowing internal resistance. I feel like I wasn't taught an equation or something.