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Question 1.SA.11: Determine the equivalent inductance LEQ for three parallel i......

Determine the equivalent inductance L_{EQ} for three parallel inductor DC circuit shown in the diagram below if L_1 = 2 mH and L_2 = 5 mH, and L_3= 20 mH.

1.SA.11
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Apply Eq. 1.36 to compute L_{EQ} for the three parallel inductor circuit.

L_{EQ}=\frac{L_1L_2L_3}{L_1L_2+L_2L_3+L_1L_3}

=\frac{(2  mH)(5  mH)(20  mH)}{(2  mH)(5  mH)+(5  mH)(20  mH)+(2  mH)(20   mH)}

= 1.33 mH

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