FreeLists / si-list / [SI-LIST] Re: AC Waveform question

["Zabinski, Patrick J." <zabinski.patrick@xxxxxxxx>]

Doug,

Is your meter set to "AC Volts" or "DC Volts"?

My understanding is that "AC Volts" on a meter will
measure the RMS value, while the "DC Volts" setting
will measure the average value.

Pat


> 
> Hi all,
> 
> I know I must have learned this in school, but now I'm not 
> sure of the answer!
> 
> Assume I have a full-wave rectified sine wave of low 
> frequency. Assume the 
> magnitude is 1.0 Volt peak (zero to peak). Assume I apply 
> this wave form 
> across an ordinary 1 Volt analog meter. What does the meter read?
> The RMS value (.707 Volts)  or
> The average value (.636 Volts)
> 
> Doug
> 
 
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