A) 125 erg
B) 125 J
C) 250 erg
D) 250 J
Correct Answer: D
Solution :
\[U=\frac{1}{2}L{{i}^{2}}\Rightarrow U=\frac{1}{2}\times 5\times {{\left( \frac{100}{10} \right)}^{2}}=250J\]
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