1. The problem statement, all variables and given/known data A circuit has a 10v battery, an 1 henry inductor, and a switch connected in series. The circuit's total resistance is 10k ohms. If the inductors maximum current is 1mA and the switch is suddenly opened how do I calculate di/dt? Wouldn't the open switch be an infinite impedance and produce infinite voltage across the inductor? 2. Relevant equations V=L x di/dt 3. The attempt at a solution Not sure where to even start?