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Old 10-20-2010, 08:19 PM   #3878 (permalink)
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Exactly! And you only need to care about the wires that have the have the current swinging really high and low really really fast. The ones with a small change in current don't matter. v = (slope of current graph)*Inductance_in_wire. So, if the current isn't changing much, the wire inductance can be big, and the voltage spike from the changing current and the inductance will still be small.

But in those regions where the current is swinging from -50 to 0 or -20 to 30 or 0 to 50 amps, those have BIG CHANGE IN CURRENT IN A SHORT TIME, so the path must be short there.
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