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Vanshika posted an Question
July 18, 2020 • 21:50 pm 30 points
  • IIT JAM
  • Physics (PH)

Where this n^2 comes from,

(A) The magnetic field inside the toroid is equation HoNI 2TS B The flux through a single turn fig. is (B.da HoN -ds HNih 2T 2T a The total flux is N time this, so the self-inductance vs equation is HNh en b N L 2t a nt laas behind voltage by an angle of

2 Answer(s) Answer Now
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  • comment-profile-img>
    Chandra prakash Best Answer

    see attached file

    cropped-1072064969.jpg
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    see

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    see

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    see

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    .where this T/4 come from

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    upside complete que..

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    time in which current changes from peak value i1 to i2 is equals to T / 40 and put value of T from upper equation. and get result..

  • Mahak

    N2 has come because First we have formula of magnetic field through toroid due to N turns but now we are calculating flux so first we have calculated flux from single turn using above formula now we have to calculate through all N turns so N2 has come

  • comment-profile-img>
    Ruby negi

    one n is already in Mf due to toroid , multiply this MF by area u get flux due to one coil , so for total flux, u have to multiply flux due to one coil by n...

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    for any doubt u could ask

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    ur doubt

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    for further discussion, do let me know.

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    let me know

  • comment-profile-img>
    Ruby negi

    one n is in m.f and other n is for no of turns for total flux..

  • comment-profile-img>
    Ruby negi

    one n is in m.f and other n is for no of turns for total flux..

  • comment-profile-img>
    Ruby negi

    one n is in m.f and other n is for no of turns for total flux..

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