Lissajous pattern shown in double-beam cathode-ray oscilloscope screen for two sinusoidal...

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Lissajous pattern shown in double-beam cathode-ray oscilloscope screen for two sinusoidal voltages of equal magnitude and of the same frequency but of phase shift of 30° electrical is

A. a circle

B. a straight at 45° in the first and third quadrant

C. an ellipse in the first and third quadrant

D. an ellipse in the second and fourth quadrant

Answer: Option C

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