.
V
V V
V
av max
6
1 6
0 637
.2V and maximum value almost
325.
The rms value the square root the mean the individual squared val-
ues and the value a. .c.
.
Example
The sinusoidal waveform applied particular circuit has maximum value 325. voltage which produces the same heating
effect d.9.3V but because the rms value gives the d.
V
V V
V
rms
max
1
2
2
2
3
2
4
2
5
2
6
2
6
0 7071
.c. The value can found from the following formula
applied the sinusoidal waveform shown Fig.
Average value
V
rms va
av max
av
V V
V
637
0 637 325 207 2
.
When say that the main supply domestic property 230V, really mean 230V rms.7071 the maxi-
mum value. 4.
Calculate the average and rms value the waveform.9
Sinusoidal waveform showing instantaneous values voltage.3 V.
For any sinusoidal waveform the rms value equal 0. .
Such waveform has average value about 207.637 the
maximum value. voltage.Basic electrotechnical units and theory
95
The average value the average over one half-cycle the instantaneous
values they change from zero maximum and can found from the
following formula applied the sinusoidal waveform shown Fig. 4.
90
30
180
150
120 60
V
V
V1
V5
V6
V2
V4
V3
FIGURE 4.
⬖
l
lue
V
rms max
rms
V V
V
7071
0 7071 325 230
.
For any sinusoidal waveform the average value equal 0.c. equivalent value almost always give the
rms value without identifying such.
.9
