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Re: Ammeters

To: Bill Lawrence <ynotink@qwest.net>
Subject: Re: Ammeters
From: Dave & Marlene <rusd@velocitus.net>
Date: Tue, 20 Apr 2004 22:25:17 -0600
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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