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From: snafu@ihlpm.UUCP (wallis)
Newsgroups: net.consumers,net.analog
Subject: Re: power meters
Message-ID: <195@ihlpm.UUCP>
Date: Tue, 26-Mar-85 18:34:36 EST
Article-I.D.: ihlpm.195
Posted: Tue Mar 26 18:34:36 1985
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> 
> I simply can't believe that someone from the scientific section of
> one of the U.S.A's supposedly leading universities doesn't know the
> answer to this.  Someone midway through high school physics should
> be able to answer this.  On the other hand perhaps education in the
> U.S. really as bad as Raygun says it is if we have science
> undergraduates or possibly graduates who don't that AMMETERS exist.
> 
> Paul Wilcox-Baker.

Actually, an ammeter won't give you an accurate
measure of the amount of power used by an AC
appliance.  Ammeters are calibrated for DC
operation.  An AC powermeter (which is a
combination of an ammeter and a voltmeter) must be
used to measure AC power usage. They are neither
as inexpensive nor as easy to use as an ammeter
(i.e. Radio Shack does not sell them).




                              Dave Wallis
                           ihnp4!ihlpm!snafu
                       AT&T Network Systems, Inc.
                            (312) 510-6238