A) 1 = 0
B) t = 1.57 ms
C) t = 3.14 ms
D) t = 6.28 ms
Correct Answer: B
Solution :
(b) t = 1.57 ms At time \[t=\frac{T}{4}\], energy stored is completely magnetic. Time, \[t=\frac{T}{4}=\frac{2\pi \sqrt{LC}}{4}\] \[\Rightarrow t=\frac{\pi \sqrt{20\times {{10}^{-3}}\times 50\times {{10}^{-6}}}}{2}\] \[t=\frac{\pi \sqrt{1000\times {{10}^{-9}}}}{2}=\frac{\pi \sqrt{1\times {{10}^{-6}}}}{2}=1.57\,\,ms\]You need to login to perform this action.
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