1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution I am trying to find the value for i as i→∞. Since ∞>0, I must look at the circuit when t>0. However, when t>0, there is a short circuit. I know that you can short circuit resistors so I can easily short circuit the 3 ohm resistor but what about the 25V voltage source? Isn't short circuiting an ideal voltage source a contradiction because both ends of the voltage source have the same voltage but the entire point of a voltage source is to produce a voltage difference between the two ends?