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Mutual Inductance

  1. Oct 20, 2009 #1
    1. The problem statement, all variables and given/known data
    A mutual inductor consists of two coils X and Y arranged so that one quarter of the magnetic flux produced by X links with Y. When X is used as the primary coil and Y as the secondary, the mutual inductance is M. What is the mutual inductance when Y is used as primary coil and X as the secondary?

    a. M/4
    b. M/2
    c. M
    d. 2M
    e. 4M

    2. Relevant equations
    [tex]E=-M\frac{\Delta I}{\Delta t}[/tex]


    3. The attempt at a solution
    I think the answer is (c) because M is independent whether X or Y is the primary one. Am I right?

    Thanks
     
  2. jcsd
  3. Oct 20, 2009 #2

    rl.bhat

    User Avatar
    Homework Helper

    Yes. M12 = M21
     
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