Kshitij posted an Question
February 07, 2020 • 08:26 am 15 points
  • IIT JAM
  • Physics (PH)

How to find L in this?

A steady current of 2 A in a coil of 400 turns causes a flux of 104 Wb to link (pass through) the loops of the coil. Computer the energy stored in the coil. (A) (C) 16. 0.04 0.20 (B (D) 0.50 0.01 Website Contantlls Website www.eduncle.comemall:Support@eduncle.com Call Toll Free:1800-120-1021

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    Paltu Sen best-answer

    The formula for L is given in attachment. Here: phi=10^(-4)Wb, I=2A, N=400. From this value you can calculate magnetic energy by using LI²/2. Ans will be opt:(B) 0.04.

    cropped7982032389971239645.jpg
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