Question

if sin wave starts at zero does it mean phase angle is always zero or When...

if sin wave starts at zero does it mean phase angle is always zero
or When Vo=0 then phase angle is zero?

in a problem Vo was not zero and the phase angle was zero by looking sin wave graph
I didn't understand

Homework Answers

Answer #1

Phase angle is the angle between two waves at t = 0 .

If the wave is of the form of Sine function which begins from 0 at t = 0 then the phase angle is 0 degree.

On the other hand if it is a cosine function then the phase angle between two waves is 90° .

Therefore, to check the phase angle , we need to find the difference in initial angle.

Or in another method, we can find phase angle by = 2π∆x/

Where ∆x is the path difference between the waves .

Please ask your doubts or queries in the comment section below.

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