AC1 Fundamentals Unit 3 – Inductance
Exercise 2 – Inductors in Series and in Parallel
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to determine the total inductance of a
circuit containing inductors in series and in parallel. You will verify your results with an
oscilloscope.
DISCUSSION
- Circuits with multiple inductors connected in series can be simplified to an equivalent
inductance that is equal to the sum of the inductors. - Circuits with multiple inductors connected in parallel can be simplified to an equivalent
parallel inductance that is equal to the inverse of the sum of the reciprocals. - If a circuit contains only two parallel inductors, the product over the sum rule can be used to
find total inductance. - Multiple inductors behave much like multiple resistors; in series the total inductance
increases while in parallel the total inductance decreases.