- #1
regisz90
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Homework Statement
There are two coils wined around the same closed iron core. Their inductances on this iron core are measured to be 4 henry, and 9 henry. Then the two coils are connected in series. What will the equivalent inductance be?
Homework Equations
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The Attempt at a Solution
I think that the measured values aren´t the inductances of the coils, but there is also some mutual inductance. The equivalent inductance in series will be L=L1+L2+2M
I just don't know that the 4 Henry and the 9 Henry are in what relation with the L1 and L2 inductances(without mutual)