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Physics
Electromagnetic Induction
A circuit contains two inductors of self inductance L1 and L2 in series as shown in fig. If M is the mutual inductance then the effective inductance of the circuit is
L1+L2
L1+L2 -2M
L1+L2 +M
L1+L2 +2M
in this type of combination, L = L1+L2-2M
