Suppose that the ac line voltage powering a computer has an RMS value of 100 V, a frequency of 100 Hz, and the first peak voltage after t = 0 s is attained at tmax = 1 ms. Which one of the following is the expression for this ac voltage?

Question

Suppose that the ac line voltage powering a computer has an RMS value of 100 V, a frequency of 100 Hz, and the first peak voltage after t = 0 s is attained at tmax = 1 ms. Which one of the following is the expression for this ac voltage?

TuteeHUB · Accepted Answer

$100\sqrt{2} \sin \left(200 \pi t - \dfrac{\pi}{5}\right)$

TuteeHUB · Answer

$100\sqrt{2} \cos \left(100 \pi t - \dfrac{\pi}{10}\right)$

TuteeHUB · Answer

$100\sqrt{2} \sin \left(100 \pi t - \dfrac{\pi}{10}\right)$

TuteeHUB · Answer

$100\sqrt{2} \cos \left(200 \pi t - \dfrac{\pi}{5}\right)$

1.	Suppose that the ac line voltage powering a computer has an RMS value of 100 V, a frequency of 100 Hz, and the first peak voltage after t = 0 s is attained at tmax = 1 ms. Which one of the following is the expression for this ac voltage?
A.	\(100\sqrt{2} \cos \left(100 \pi t - \dfrac{\pi}{10}\right)\)
B.	\(100\sqrt{2} \sin \left(100 \pi t - \dfrac{\pi}{10}\right)\)
C.	\(100\sqrt{2} \cos \left(200 \pi t - \dfrac{\pi}{5}\right)\)
D.	\(100\sqrt{2} \sin \left(200 \pi t - \dfrac{\pi}{5}\right)\)
Answer» D. \(100\sqrt{2} \sin \left(200 \pi t - \dfrac{\pi}{5}\right)\)

Suppose that the ac line voltage powering a computer has an RMS value of 100 V, a frequency of 100 Hz, and the first peak voltage after t = 0 s is attained at tmax = 1 ms. Which one of the following is the expression for this ac voltage?

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