AC Fundamentals – 57

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57. A waveform has a baseline of 3 V, a duty cycle of 20%, and an amplitude of 8 V. The average voltage value is ________.

(a) 4 V
(b) 4.6 V
(c) 1.6 V
(d) 11 V

Answer
Answer : (a)
Explanation
Explanation :

Average voltage = baseline + (duty cycle * p-p amplitude)

baseline = 3 V
duty cycle = 0.2
p-p amplitude = amplitude-baseline = 8V – 3V = 5V.

Average voltage = 3 + (0.2 * 5) = 3+1 = 4V.

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