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Vanshika posted an Question
August 09, 2020 • 23:25 pm 30 points
  • IIT JAM
  • Physics (PH)

Why we use k here in place of n as marked by red pen in picture....

ancle.com Physics (USP (ydx+zdy+ xdz) = oydx, sin ce on C, z = 0 and dz = 0 sintdt=sin tdt dt (1-cos 2t) dt =- Sin 2t -2T 2 Now let us evaluate curl Fen dS we have curlF ik F Ox oy Oz Z x If S, is the plane region bounded by the circle C, then by an application of divergence theorem, we have curl F.n dS = |, curl Fk dS J. (H-1-k)-k,dS- J], (-1)ds =- ds--S But S,= area of a circle of radius 1 r(1)? = T. curl F.n dS =-T =- 3.14 9.23

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    Deepak singh 1 Best Answer

    because they have taken projection on xy plane , this means direction will be in z direction i.e k see in attached , you will see we have taken projection on xy plane and n= k (zaxis ) is upward..

    cropped-179149663.jpg
    cropped748614870.jpg
    eduncle-logo-app

    if this bowl is downward then n= -k

    eduncle-logo-app

    any doubt then ask

  • Mahak best-answer

    here n means any direction but in this we take n as k Direction

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