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RMS value is defined as "The amount of ac supply required to make same heat effect in resistor , which is made by dc current, in that resistor"

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Q: In roughness measureing system what is RMS value?
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How do you convert an RMS current value to a DC value?

RMS current is converted to DC current by using a rectifier. Capacitors and other components are used to make a cleaner DC output with less ripple.


What would be the rms value of current if the instantaneous value at 45 degrees is 70.7 amps?

100 ampere


What is difference between RMS and true RMS?

RMS means root mean square and watts means power. What a difference! Scroll down to related links and look for a neat pressure converter at"Root Mean Square" und knowlege about "Watt" Watts root mean square is the effective value of alternating current electrical power compared to direct current power. Scroll down to related links and look for "Why there is no such thing as 'RMS watts' or 'watts RMS' and never has been". RMS watts is meaningless, but we use that term as "an extreme shorthand" for power in watts calculated from measuring the RMS voltage.


What is the fullform of rms?

Root Mean Square value


The average value of a single sine wave of AC is 42.5amps. what is rms value?

Average Current = 0.636 * (Peak Current)so Peak Current = (Average Current)/0.636RMSCurrent = 0.707 * (Peak Current)so Peak Current = (RMS Current)/0.707Because both equations are in terms of Peak Current, we can set them equal to each other.(Average Current)/0.636 = (RMS Current)/0.707(42.5)/0.636 = (RMS Current)/0.707thenRMS Current = (0.707)(42.5)/0.636 = 47.24 ampsAnother AnswerSince the average value of a single sine wave is zero, you cannot calculate its r.m.s. value!

Related questions

Is 240v rms value or peak value for AC source?

rms. dat means Vp-p will be 325V.


Household supply of 230volts is rms value or maximum value of voltage?

When you say holdhold supply of 230volts, you are referring to the RMS value, not the peak value.


What does RMS mean in sound amplyfire system?

RMS amplyfire system


What is rms value in ac system?

The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.


Which has a higher RMS value given a sine wave a square wave and a sawtooth wave?

A square wave has the highest RMS value. RMS value is simply root-mean-square, and since the square wave spends all of its time at one or the other peak value, then the RMS value is simply the peak value. If you want to quantify the RMS value of other waveforms, then you need to take the RMS of a series of equally spaced samples. You can use calculus to do this, or, for certain waveforms, you can use Cartwright, Kenneth V. 2007. In summary, the RMS value of a square wave of peak value a is a; the RMS value of a sine wave of peak value a is a divided by square root of 2; and the RMS value of a sawtooth wave of peak value a is a divided by cube root of 3; so, in order of decreasing RMS value, you have the square wave, the sine wave, and the sawtooth wave. For more information, please see the Related Link below.


How do you measure rms value of complex waveform?

rms value is measured using voltmeter with the use of heat sensing elements.


How to derive the RMS of a full wave rectifier?

AC RMS Value x 1.414


Is utility voltage ie 110 VAC given as a RMS value or as a Peak value?

All AC voltages and currents are expressed as rms values, unless otherwise specified. So 120 V AC is an rms value.


Why do we need exactly one cycle data for computing the RMS value?

You don't need exactly one cycle data for computing the RMS value. It is just a convenient normalization. 1 cycle = 1Hz. RMS values can also be specified in 1 Mcycle, 1kcycle, even 2.39384kcycles. Again, 1 cycle is simply convenient. In other words, if the RMS value were specified in MHz, the RMS value will be 20*log(MHz/Hz) higher.


What is RMS Peak value and average value?

RMS is used to determine the average power in an alternating current. Since the voltage in an A/C system oscillates between + and -, the actual average is zero. The RMS or "nominal" voltage is defined as the square root of the average value of the square of the current, and is about 70.7% of the peak value.************************************************************The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.Fo a sine wave, the r.m.s. value is 0.707 x the peak value.The average value is different; for a sine wave it is 0.636 x the peak value.


Find rms and average value of 15a current?

RMS is just 15/sqr2 average is 15 * 0.637


What is the rms value for 300mv peak to peak?

Its 0.7 times peak-0 voltage, 106 mv RMS.