FCC Exam Question: 3-4A1

What formula would calculate the total inductance of inductors in series?

A. L
B. L
C. L
D. L
Correct Answer: B

Explanation: When inductors are connected in series, their individual inductances add together to form the total inductance. This is because the magnetic fields generated by each inductor in the series path combine constructively. As current flows through each inductor sequentially, each one contributes to the overall opposition to changes in current, effectively increasing the total inductive effect. Therefore, the total inductance (L_total) of inductors L1, L2, L3, etc., in series is calculated using the formula: L_total = L1 + L2 + L3 + ... + Ln

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Includes Elements 1, 3, 6, 7R, 8, and 9.