AC Fundamentals – 62

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62. A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is ________.

(a) 6 V
(b) 30 V
(c) 35 V
(d) 0 V

Answer
Answer : (c)
Explanation
Explanation :

Vmax = √2 * Vrms = 1.414 * 12 V =16.9 V.

Vmax + Vdc = 16.9 v+ 18 = 34.9 = 35 V.

One cycle of sine wave has two half waves.

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