# AC Fundamentals – 40

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40. One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is ________.

(a)
(b) 45°
(c) 40°
(d) none of the above

Explanation
Explanation :

Phase angle is the difference between angles of the two waveforms.
Wave 1 = 15° and
Wave 2 = 55°
So, Phase angle is = 55°-15° = 40°

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