A) 1
B) 0.05
C) 10
D) 0.5
E) 0.1
Correct Answer: E
Solution :
\[U=\frac{1}{2}L{{i}^{2}}=\frac{1}{2}\times 50\times {{10}^{-3}}\times 2\times 2=0.1\,J\]
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