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Inductance in Series Circuits

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Inductance in Series Circuits

Inductance in a series circuit is additive. This is a short hand way of saying that the total inductance in a series circuit equals the sum of each of the inductance values in the circuit.

So the formula is Lt = L1 + L2 + L3 + L4 in a circuit with 4 components.

If you know the total inductance and all individual inductance values except one, then the inductance of the missing value can be calculated by subtracting all known individual inductances from total inductance. The result will be the inductance of the individual missing component.

Here are formulas for a circuit with 4 components when one is missing and you know the total:

If L1 is missing, then L1 = Lt - L2 - L3 - L4

If L2 is missing, then L2 = Lt - L1 - L3 - L4

If L3 is missing, then L3 = Lt - L1 - L2 - L4

If L4 is missing, then L4 = Lt - L1 - L2 - L3

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