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Why all the quanties are mentioned in rms value?

Updated: 8/20/2019
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LakshmaReddyBeeraval...

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11y ago

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Not all the quantites,but Most of the quantities in electrical system are varying in nature.RMS can mainly measure the magnitude of the quantities that are varying in nature.

Mathematically speaking it can be calculated for a series of discrete values or for a continuously varying function.

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An r.m.s. value is the value of an a.c. current that performs exactly the same amount of work as a given value of d.c. current. In other words, 10 A (r.m.s.) does exactly the same amount of work as 10 A (d.c.). Since voltage and current are proportional, it also applies to voltage. So, it provides a way of comparing a.c. values with d.c. values.

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Q: Why all the quanties are mentioned in rms value?
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What is the all the quanties are mentioned in rms value in electrical systems?

Most of the quantities in electrical system are varying in nature.RMS can mainly measure the magnitude of the quantities that are varying in nature. Mathematically speaking it can be calculated for a series of discrete values or for a continuously varying function.


Why rms value is used to measure all the quanties?

Most of the quantities in electrical system are varying in nature.RMS can mainly measure the magnitude of the quantities that are varying in nature. Mathematically speaking it can be calculated for a series of discrete values or for a continuously varying function.


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

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


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.


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.


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.


If The wall outlet has RMS value of 120VAC what is the peak value?

220 V is rms in europe if that is what you are getting at. Peak is at about 311 V.AnswerUnless otherwise stated, all a.c. voltages and currents are expressed in r.m.s. values.


How to derive the RMS of a full wave rectifier?

AC RMS Value x 1.414


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 the rms value for 300mv peak to peak?

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


Find rms and average value of 15a current?

RMS is just 15/sqr2 average is 15 * 0.637