
[i.e., which comes after which (in a visual sense)] between
them in t or
ω
t axis too, is independent of choice of origin.
However, the phase of a sinusoidal waveform depends on the
choice of origin in t or
ω
t axis.
• When a waveform point on a sinusoidal function v
2
(t) appears
after a similarly located point on the waveform of another
sinusoidal function v
1
(t) with same frequency, v
2
(t) is said to
lag v
1
(t) in phase and
θ
1
–
θ
2
is called a lag phase angle under
this condition.
• Similarly, when a waveform point on a sinusoidal function
v
2
(t) appears before a similarly located point on the waveform
of another sinusoidal function v
1
(t) with same frequency ...