A) 120 volts, 100 Hz
B) \[\frac{120}{\sqrt{2}}\] volts, 100 Hz
C) 60 volts, 200 Hz
D) 60 volts, 100 Hz
Correct Answer: D
Solution :
\[V=120\,\,\sin 100\pi t\,\,\cos \,100\,\pi t\]\[\Rightarrow \,V\,=60\,\sin \,200\pi t\] \[{{V}_{\max }}=60V\,\]and \[\nu =100Hz\]
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