Question: 555 A periodic waveform can be expressed as vt = 20 + 16 cos 500t 8 sin 1000t + 4 cos 2000t V (a)

5–55 A periodic waveform can be expressed as vðtÞ = 20 + 16 cos 500πt − 8 sin 1000πt + 4 cos 2000πt V

(a) What is the period of the waveform? What is the average value of the waveform? What is the amplitude of the fundamental

(lowest frequency) component? What is the highest frequency in the waveform?

(b) Simulate the waveform in MATLAB or Excel and find VMAX, VMIN, Vp, Vpp, and Vavg.

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