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Why does the voltmeter measure the rms value of voltage?

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renzworldc

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voltmeter vpp

why does the volmeter measure the rms value of voltage and not the peak or avg. value:?:??
 

Re: voltmeter

because it is of more use than the peak, Most of the cases RMS valus is of use thatn the peak.

RMS is the effective voltage ...

u can calculate peak from RMS if u require taht .
 

voltmeter

Beside what BABESH mentioned
usually most of voltmeters use a rectifier circuit before measuring voltage, so AC is converted to DC, however there are some voltmeter read Vpp and rms.
 

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