1. The problem statement, all variables and given/known data I have several problems in which I am to solve for all variables in a series circuit. Then I am given a follow-up question in which a resistor, or multiple resistors, short out or open. I am then required to calculate the variables in the altered circuit. 2. Relevant equations (Theory question-equations not directly relevant) 3. The attempt at a solution I am unsure of the exact effect, and I have a feeling that my assumptions are incorrect. Please guide me here, let me know if I'm doing it right. In the event of a short, I think that the total voltage stays the same and the current is altered. In the event of an open circuit (at a specific resistor), I think that the total voltage stays the same, the current becomes zero, and all individual voltages except for the resistor which has opened become zero. That is to say, voltage read across R1 and R2 are zero if R3 opens. How am I doing?