http://www.allaboutcircuits.com/vol_1/chpt_8/5.html
Bill Lawrence wrote:
> Not so, they can also be used for DC depending on what they are attached
> to. Same principle as the induction loop on an electronic tach, which
> runs on DC. They use the inductance produced by an electrical current to
> run a voltmeter (or galvanometer) movement.
>
> Bill Lawrence
>
> On Apr 20, 2004, at 1:56 AM, Alan F Cross wrote:
>
>> I can't see how an inductive loop will work, as they only give an
>> output from an alternating current.
>>
>> Now, a Hall Effect device strapped to the cable might work. Anyone
>> experimented here?
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