Help to solve the electromagnetic problem.

Discussion in 'Homework Help' started by sagar474, Dec 1, 2011.

  1. sagar474

    Thread Starter New Member

    Jul 22, 2010
    16
    0
    Determine the total magnetic flux through the rectangular loop shown in the figure. The source of the magnetic field is the long straight conductor carrying a current I.
    [​IMG]

    there is no information about length of the conductor.

    so I taken it is of infinite length.

    B at distance r form the conductor is given by uI/2[​IMG]r ( infinite current carrying conductor).

    Flux=intg(B.dA)
    =intg(μI/2πrdLdr)

    B is content wrt L so

    =LμI/2π intg((1/r)dr)
    =LμI/2π*log(r2/r1)

    but I'm not confident since the it differs form answer given in the book.

    This is the book answer!
    [​IMG]

    [​IMG]
     
    Last edited: Dec 1, 2011
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