The self-inductances of three coils are LA = 20H, LB = 30H and LC = 40 H. The coils are connected in series in such a way that fluxes of LA and LB add, fluxes of LA and LC are in opposition and fluxes of LB and LC are in opposition. If MAB = 8H, MBC = 12H and MAC = 10H, what is the total inductance of the circuit?
1
46 H
2
62 H
3
70 H
4
82 H