NEET · Physics · STD 12 -6. Electromagnetic induction
The magnetic energy stored in an inductor of inductance \(4\,\mu H\) carrying a current of \(2\,A\) is :
- A \(8\,\mu J\)
- B \(4\,\mu J\)
- C \(4\,mJ\)
- D \(8\,mJ\)
Answer & Solution
Correct Answer
(A) \(8\,\mu J\)
Step-by-step Solution
Detailed explanation
Energy \(=\frac{1}{2} Li ^2\) \(=\frac{1}{2} 4 \times 10^{-6} \times 2^2\)
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