1. The problem statement, all variables and given/known data 1. A 109.3 mH inductor whose windings have a resistance of 3.6 Ω is connected across a 11 V battery having an internal resistance of 1.83 Ω. How much energy is stored in the inductor? 2. The maximum allowable potential difference across a 225.7 mH inductor is 401 V. You need to raise the current through the inductor from 1.28 A to 3.88 A. What is the minimum time you should allow for changing the current? 2. Relevant equations EMF(max)=wNBA w=angular momentum N=number of loops B=magnetic field A=area 3. The attempt at a solution For both of these what seem to be similar problem I am hitting a dead end!