A 15 mH is connected in series with another coil. The total inductance – McqOptions

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1.	A 15 mH is connected in series with another coil. The total inductance in series addition and series opposition is 70 mH and 30 mH respectively. Find self – inductance of the second coil.
A.	10 mH
B.	25 mH
C.	20 mH
D.	35 mH
Answer» E.

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