A generator produces a voltage that is given by \( v=240 \sin 120 t \), where \( t \) is in seco....

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A generator produces a voltage that is given by
\( \mathrm{P} \)
\( v=240 \sin 120 t \), where \( t \) is in seconds. The frequency and r.m.s. voltage are
W
(1) \( 60 \mathrm{~Hz} \) and \( 240 \mathrm{~V} \)
(2) \( 19 \mathrm{~Hz} \) and \( 120 \mathrm{~V} \)
(3) \( 19 \mathrm{~Hz} \) and \( 170 \mathrm{~V} \)
(4) \( 754 \mathrm{~Hz} \) and \( 70 \mathrm{~V} \)


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