v (volts)
0.8
0.6
0.4
20
0.2
-0.2
-0.4
-0.6
-0.8
0
-1
0
12
TT
v=sin
from 0 to 2
πT
(radians)
TT
k
3
12
πT
2
πT
Figure 2: Relationship between instantaneous value and angle for a voltage sine wave

From Figure 2 Find the average voltage for the interval from 0 to 2pi for a rectified signal (V): 2