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(C) The standard equation for an $ac$ voltage is given by $E = E_0 \sin(\omega t)$,where $\omega$ is the angular frequency.Comparing this with the giv

Vedclass · Accepted Answer

$60$

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(C) The standard equation for an $ac$ voltage is given by $E = E_0 \sin(\omega t)$,where $\omega$ is the angular frequency.Comparing this with the given equation $E = 170 \sin(377t)$,we get $\omega = 377 	ext{ rad/s}$.The relationship between angular frequency $\omega$ and frequency $
u$ is $\omega = 2\pi 
u$.Therefore,$
u = \frac{\omega}{2\pi} = \frac{377}{2 	imes 3.14159} \approx 60.03 	ext{ Hz}$.Rounding to the nearest integer,the frequency is $60 	ext{ Hz}$.

An $ac$ generator produces an output voltage $E = 170 \sin(377t) \text{ volts}$,where $t$ is in seconds. The frequency of the $ac$ voltage is......$Hz$.

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