How is it possible to safely disconnect/turn off an inductor that has current through it without causing a huge backward voltage? Even dropping from a circuit with low current, it the current will still be going from finite to 0, in a very small space of time (how would you calculate this time?), causing a big voltage spike. How can inductors possibly be safe if disconnecting them is so dangerous?
closed as unclear what you're asking by PeterJ, laptop2d, Mitu Raj, Lior Bilia, Dmitry Grigoryev Mar 2 '18 at 20:23
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