What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?
Correct answer: C. 90°
- A. 0°
- B. 45°
- C. 90°
- D. 180°
Explanation
For equal-frequency sinusoidal waves, a maximum of one wave coincides with a zero crossing of the other when their phase difference is one-quarter cycle, or 90°.
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