what is significance if rms voltage/current

[smartshashi]

significance of rms voltage

i want to know that what is difference between the rms voltage/current quantity & avg voltage/current quantity. what is importance of rms term?

 

[A.Anand Srinivasan]

significance of rms value

well if u find the average value of current or voltage of a ac quantity u would notice that it is zero and using that to calculate power makes no sense... rms value is a quantity used to quantify ac quantities.....

 

[jallem]

what is the significance of rms voltage

rms values represent the energy available
while average are 0Hz(DC) value.

 

[Kral]

significance of rms

smartshashi,
The RMS value is the voltage in a purely resistive load that results in the same power (Heating effect) as a DC voltage of the same value. For example, a sine wave with a peak voltage of 1.0V. produces the same power into a resistive load as a DC voltage of (SQRT(2))/2 volts. So the RMS vlaue of this AC voltage is (SQRT(2)/2 volts = .707106..... The average value of the same AC waveform is [2/PI] = .6366..., which is less than the RMS value.
.
For a square wave, the peak, average and RMS values are equal.
Regards,
Kral

 

[IBO]

rms voltage , significance

when replacing dc source with a dc value equivalent to the rms of an ac source in a circuit, equivalent power will results. Helps in analysis.

hope it helps u out

 

[Electronica]

importance of rms value

rms gives u the effective value or dc value of ac signal

 

[vivek_bahire]

significance rms voltage

rMS value is the amount of DC volatage required to transfer the same charge across the ckt. as that transferred by equivalent DC source.

 

[The Joy of Electronics]

significant of rms voltage

Hi...

As was stated very precisely by Kral, The RMS value of a signal is the amount of equivalent DC signal which has equivalent heating effects. The term "signal" may refer to either voltage or current.

Regards!

 

[masri]

significance rms value

rms value is the equivalent dc value of an ac quantity

 

[ashuisgolu]

square wave rms voltage calculation

hi,

The rms value of a periodic voltage/current is a constant value that will produce the same power in a resistor as is produced on the average by the periodic current/voltage.