Re: [DMCForum] Re: Andrew's second dumb question of the evening

[Andrew <aos+yahoo@xxxxxxxx>]

On Tue, 3 May 2005, Matt Spittle wrote:

> Learn to use your meter :)
>
> You cannot check resistance when there is a power source in the
> circuit.  I believe the way that it checks the resistance is by
> applying a very small voltage across the two leads and then measuring
> the current that is passed.  When you have another voltage source
> "live", it will throw off that reading.

Okay, makes perfect sense.  I'm a dumbass.  :)  (Hey, I warned you in the 
subject line at least.)

I'm ashamed to admit that I've used ohmmeters for at least 20 years now 
and never once stopped to think about that.

Thanks for clarifying.  :)

-andrew

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