1)
V= Vmax * sin wt
at t = 0.0123 s, V=0.25*Vmax
V= Vmax * sin wt
0.25*Vmax = Vmax* sin (w*0.0123)
0.25= sin (w*0.0123)
{sin -1 (0.25) = 14.48 degree or 0.253 rad}
0.253 rad = w*0.0123 s
w= 20.57 rad/s
This is maximum w.
2)
Output will again be 0.25 times maximum after 1 time period
Use:
w = 2*pi/T
T= 2*pi/w
= 2*pi/20.57
= 0.3 s
So time will be 0.0123 + 0.3 =0.3123 s
Answer: 0.3123 s
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