reciprocal of the square root of 2, converts from peak voltage to rms voltage
To convert DC values to AC values if you are wanting RMS values they are the same. 100V DC and 100V AC (RMS) are the same "value". If you want to know the Peak-To-Peak AC value you would multiply the RMS value by 1.414. So 100V AC RMS equals 141.4 V Peak to Peak.
We will always calculate rms value only since the average value of ac current or voltage is zero. So we are using rms values in the ac circuit to calculate the power and to solve an ac circuit.
All AC voltages and currents are expressed as rms values, unless otherwise specified. So 120 V AC is an rms value.
2.7A on the primary25A on the secondaryThis is easily calculated usingP = VIAs long as we make sure we use RMS values for current and voltage.
Both. When an AC voltage is measured and a number is reported, it is necessary to state that this number is rms value or peak value or peak to peak value.AnswerVoltages and currents are each normally expressed in root-mean-square (rms), unless otherwise stated. For example, when we talk about a '120-V service' or a '240-V service', we are expressing the voltages in rms values; it is unecessary to specify that these are rms values. For a sinusoidal waveform, Vrms = 0.707 Vpeak
To convert DC values to AC values if you are wanting RMS values they are the same. 100V DC and 100V AC (RMS) are the same "value". If you want to know the Peak-To-Peak AC value you would multiply the RMS value by 1.414. So 100V AC RMS equals 141.4 V Peak to Peak.
wht is the significant of RMS VALUES OF A PARTICULAR WAVE/
Bridge rectifiers have higher rms values because the ripple factor low.
We will always calculate rms value only since the average value of ac current or voltage is zero. So we are using rms values in the ac circuit to calculate the power and to solve an ac circuit.
I am not certain what is being asked here. RMS is Root Mean Square which is basically the DC voltage which would produce the same amount of heat in a heating element as the AC voltage in question. Since AC is continuously changing in polarity and voltage, it is handy to use the RMS voltage rather than the peak (169.7V for 120V RMS) or peak-to-peak (339.4V for 120V RMS). The peak or peak-to-peak voltage is handy to know when considering the maximum values such as in rectification.
RMS is root mean square in physics. RMS is Railway Mail Sevice in postal net work rms ie root mean square is got first squaring the positive and negative values to make them all positive. Then mean is taken. After that we have to take square root of the mean square. So square Root of the Mean value of the Squares of the values. Hence the name
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.
All AC voltages and currents are expressed as rms values, unless otherwise specified. So 120 V AC is an rms value.
Average values of an AC source would be zero, which wouldn't be particularly helpful. Peak values are mainly useful if that's what you're interested in. RMS allows AC to be calculated as if it was DC, which is simple and helpful.
Power is determined from an AC voltage measured in volts RMS and an AC amperage measured in amps RMS, but there is really no such thing as "RMS power". People are using the term "RMS power", but that is not correct. it is actually "average power".Why there is no such thing as 'RMS watts' or 'watts RMS' and never has been:http://www.hifi-writer.com/he/misc/rmspower.htm
There is such a thing as "RMS power", but it's not useful for anything, so don't use the term. No one measures the RMS of the power waveform. What they do is measure the RMS of a voltage waveform, and then use that to derive the averagepower. The correct term is "average power", not "RMS power". You could measure the RMS of the power waveform instead of the average, but your measurement would be 1.2 times too high.
2.7A on the primary25A on the secondaryThis is easily calculated usingP = VIAs long as we make sure we use RMS values for current and voltage.