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Q: What value exactly matches the rms value of an ac signal?
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Which one of the following values exactly matches the rms value of an AC signal A.Effective B.Average C.Peak-to-Peak D. Peak?

the answer is A effective


What is the effective value of an AC signal of 141 volts peak value?

If the AC signal is sinusoidal, then the RMS value is 141 divided by square root of 2, i.e. 99.7 volts.


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

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


What are the advantages of using an Oscilloscope over a voltmeter?

In the name of Allah,the most Gracious,the most Merciful... The Oscilloscope has several advantages over a voltmeter, for example if you want to determine a signal parameters [ voltage values (max,peak-to-peak,rms,average...etc),frequency,offset...etc ] using measurement tools: 1- You can use the Oscilloscope whatever the signal frequency is, but you can't use the Avometer unless the signal frequency is 50 to 60 Hz. 2- The Oscilloscope shows you the shape (form) of the signal, while the Avometer doesn't. 3- You can determine the maximum value of the signal (max voltage) and peak-to-peak voltage when you observe the signal on an Oscilloscope,hence you can calculate the rms (root mean square) value, i.e. the effective value , the average value and the offset of signal form the time axis (the horizontal axis). While an Avometer can only give you the rms value.


A technician uses an oscilloscope to measure the peak value of an AC wave He tells you that the voltage has a peak value of 100 v What is the rms value of the voltage?

you take the peak voltage and divide it by the square root of 2 100/1.414= 70.7 volts rms This is true only for sine wave. For other waveforms like a triangle signal it is different.

Related questions

Which one of the following values exactly matches the rms value of an AC signal A.Effective B.Average C.Peak-to-Peak D. Peak?

the answer is A effective


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 effective value of an AC signal of 141 volts peak value?

If the AC signal is sinusoidal, then the RMS value is 141 divided by square root of 2, i.e. 99.7 volts.


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.


Does RMS value exist in DC?

You have not provided enough information. For 12 volt peak to peak, purely AC signal, there will be no DC (hence purely AC). This means there is no offset - the AC signal peaks at 6 volts and -6 volts. The RMS value of this is VRMS = peak / sqrt(2) = 6 / 1.4.


Why to use rms value for ac?

An r.m.s. value of a.c. current does exactly the same amount of work as a corresponding value of d.c. current. For example, 10 V (rms) a.c. is exactly equivalent to 10 V d.c. Since voltage and current are proportional to each other, then an r.m.s. value of a.c. voltage is exactly equivalent to the corresponding value of d.c. voltage.So, r.m.s. provides a way of equating a.c. and d.c. values.


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.


Where was the RMS Olympic when the RMS Titanic left on her maiden voyage?

The RMS Olympic was miles away from the titanic, though they recived the S,O,S signal.


How do you measure rms value of complex waveform?

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


What are the advantages of using an Oscilloscope over a voltmeter?

In the name of Allah,the most Gracious,the most Merciful... The Oscilloscope has several advantages over a voltmeter, for example if you want to determine a signal parameters [ voltage values (max,peak-to-peak,rms,average...etc),frequency,offset...etc ] using measurement tools: 1- You can use the Oscilloscope whatever the signal frequency is, but you can't use the Avometer unless the signal frequency is 50 to 60 Hz. 2- The Oscilloscope shows you the shape (form) of the signal, while the Avometer doesn't. 3- You can determine the maximum value of the signal (max voltage) and peak-to-peak voltage when you observe the signal on an Oscilloscope,hence you can calculate the rms (root mean square) value, i.e. the effective value , the average value and the offset of signal form the time axis (the horizontal axis). While an Avometer can only give you the rms value.


A technician uses an oscilloscope to measure the peak value of an AC wave He tells you that the voltage has a peak value of 100 v What is the rms value of the voltage?

you take the peak voltage and divide it by the square root of 2 100/1.414= 70.7 volts rms This is true only for sine wave. For other waveforms like a triangle signal it is different.