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The RMS value of an AC voltage is VRMS = VPEAK / sqrt(2), where VPEAK = the voltage peak to neutral.

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The average value of a sinusoidal a.c. voltage is zero.

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Why does a digital multimeter show rms voltage?

rms values refer to "root mean square" mathematical values of the sine wave of electricity. This is essentially an "average" value of the voltage being measured as voltage in any circuit varies constantly.


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What is the relationship between peak rms and average values of an ac voltage?

Peak voltage of an AC voltage is the value at its highest or lowest point.RMS (Root Mean Square) voltage of an AC voltage is a mathematical derivation involving the square root of the average value of the squares of samples of the voltage as the sample interval approaches zero.Average voltage is simply that - the average or mean voltage.For a true sine wave, RMS and average are equivalent, but they are not equivalent when the wave is distorted, or has some other shape such as triangular.RMS is the best way to measure an AC voltage, as it gives you a true reading of the amount of power that the voltage can deliver.One issue with non-RMS AC meters is that they typically measure the rectified, filtered peak value and then compensate by dividing by 1.4. This is not correct unless the voltage is a sine wave.AnswerThe peak value of an a.c. voltage or current is the amplitude of that voltage or current waveform -i.e. the maximum value of voltage or current in either the positive or the negative sense.The root-mean-square (rms) value of an a.c. voltage or current. For a sinusoidal waveform, the rms value is 0.707 times the peak value (amplitude). A.C. voltages or currents are always quoted in rms values unless otherwise specified.The average value of an a.c. voltage or current is zero over one complete cycle so, when used, it applies only over one half cycle. Therefore, the average value for one-half cycle of a sine wave is 0.637 times the peak value. Average values are of little relevance to a.c. calculations.


What is average value in alternate voltage?

The term is 'alternating voltage', not 'alternate voltage'. For an a.c. voltage or current, the average value is taken over half its wavelength because, over a complete wavelength it is, of course, zero. For a sine wave, the average value (over half a wavelength) is 0.637 Vmax or 0.637 Imax.


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.


What is the form factor of a half wave rectifier?

It is defined as the ratio of RMS value of output voltage to the average value of the out put voltage.


How do you get the value of a circle without using mathematical formulas?

You don't... I am a math teacher... you need to use the formula!


Why this rms voltage is 0.707 times peak voltage?

The root mean square (RMS) voltage is 0.707 times the peak voltage for a sinusoidal waveform because of the mathematical relationship between peak and RMS values. The RMS value is calculated as the peak value divided by the square root of 2 for a sinusoidal waveform. This factor of 0.707 ensures that the average power delivered by the AC voltage is the same as the equivalent DC voltage for resistive loads. This relationship is crucial for accurately representing and analyzing AC voltage in electrical systems.


What is a mathematical value?

It is the representation of a value in mathematical notation.


The effective value of ac voltage is calculated as?

EFFECTIVE HOW ABOUT AVERAGE .639 of peak.AnswerThe 'effective' value of an a.c. voltage (or current) is the same as its 'root-mean-square' (r.m.s.) voltage which, for a sinusoidal waveform, is 0.707 Umax.The 'average' value of an a.c. voltage (or current) is zero over a complete cycle, or 0.639 Umax, over half a cycle (usually applied to rectified waveforms).


What is the significance of the number 2.3728639 in the context of mathematical calculations?

The number 2.3728639 is significant in mathematical calculations as it represents a specific value or measurement that can be used in various equations or formulas. It is a precise numerical value that can be manipulated and used in calculations to obtain accurate results.


What is different between rmsvoltage and average voltage?

The RMS value of a sinusoidal voltage is 2/pi x (the peak voltage).The time average of a sinusoidal voltage is 1/sqrt(2) x (the peak voltage).So I guess the difference is ( 2/pi minus 1/sqrt(2) ) x (peak voltage) = 0.07 of the peak voltage. (rounded)The significance is:The RMS value used to be called the "heating value". It's the value of the DC thatyou'd have to pass through a toaster coil to produce the same heat as this AC.But the heating effect at every instant is not proportional to the voltage. It's proportionalto (the voltage)2. So the heating effect is stronger near the top of the waveform thanyou'd expect, and it's stronger than a DC at the average value.