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Writing mesh equations for a RL circuit

  1. Mar 17, 2017 #1
    1. The problem statement, all variables and given/known data
    Write the equations for the two mesh current i1 and i2. The circuit and the answer to mesh 1 are showing below
    Capture.PNG Capture1.PNG

    2. Relevant equations


    3. The attempt at a solution
    My answer came out to be the same as the answer key except for the -25di1/dt term. It seems that this term gets counted twice. Could someone please help me understand this problem? Thanks!!!
     
  2. jcsd
  3. Mar 17, 2017 #2

    gneill

    User Avatar

    Staff: Mentor

    The mesh current ##i_1## passes through both inductors so it contributes two mutual inductance terms to the loop.
     
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