Problem 4-1    Source:    Problem elaborated by the author of the site.

Knowing that L₁ = 12 H,   L₂ = 4 H  and  L₃ = 6 H calculate the total inductance of the circuit show in Figure 04-01.1 between the points a and b.

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Problem 4-2    Source:    Problem elaborated by the author of the site.

In the figure below, L₁ = 12 H, L₂ = 6 H and L₃ = 12 H.

Calculate the total inductance of the circuit show in Figure 04-02.1 between points a and b.

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Problem 4-3    Source:    Problem elaborated by the author of the site.

In the figure below, L₁ = 12 H, L₂ = 6 H and L₃ = 12 H.

Calculate the total inductance of the circuit show in Figure 04-03.1 between points a and b.

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Problem 4-4    Source:   Problem elaborated by the author of the site.

Suppose the circuit is in permanent regime. Calculate the energy stored by the inductors in the circuit show in Figure 04-04.1.

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