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Subject: Re: (Avionics) How can this circuit produce an "inductive surge"?
Date: Fri, 27 Sep 2002 07:56:01 +0100
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Mike Poulton wrote
>>>> How much of a collapsing field would it take to generate say 20V
>>>> across say 6" of wire?
>> Not much, if it collapses quickly enough. Use Faraday's induction law:
>> f -d ff
>> O e dl = -- || B dA
>> j dt jj
>> I always wanted to try to do that in ASCII!
>> Details of the calculation are left as an exercise for the student.
>ASCII path integrals! I've never seen that one before...
I think if this was the complete answer, manufacturers would simply
avoid routing wires near the starter motor and we would not have to
follow the startup/shutdown procedures.
I've seen qualitative answers only so far, regurgitating stuff from
the standard texts on the subject, but nothing that answers the
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