If 12 mH and 24 mH are connected in series, what is the total inductance?

When inductors are connected in series, the total inductance is simply the sum of the individual inductances. This principle is applicable because the total magnetic field interacts in a way that each inductor contributes to the overall inductance.

In this scenario, you have two inductors: one with an inductance of 12 mH and another with an inductance of 24 mH. To find the total inductance when they are connected in series, you perform the following calculation:

Total Inductance = Inductance of first inductor + Inductance of second inductor

Total Inductance = 12 mH + 24 mH = 36 mH.

Thus, the total inductance when these two inductors are connected in series is 36 mH, making it the correct answer. Understanding this concept is crucial for tasks involving circuit analysis, as it allows you to accurately calculate how different inductors will behave when incorporated into electrical systems.