Question

If the energy stored in an inductor is 18 mJ when a current of 3 A is passed through it, then the magnetic flux linked with the inductor is

• A. \(36\ \text{mWb}\)
• B. \(24\ \text{mWb}\)
• C. \(18\ \text{mWb}\)
• D. \(12\ \text{mWb}\) \bigskip

Hint:

Remember the relation \[ U=\frac12 I\lambda \] Thus, \[ \lambda=\frac{2U}{I} \] This formula provides a direct shortcut for such questions.

Answer 1

The Correct Option is D