1. The problem statement, all variables and given/known data I have to answer a few questions about a lab session I did (university) and I'm really stuck with this one. The objective of the lab session was to find the self inductance (L) of a solenoid. In order to do that, I had a function generator exciting a solenoid with a high self-inductance coefficient. (see image) This one, at the same time, by magnetic coupling with the solenoid whose L we want to obtain, excites the RLC circuit, causing a transient response in the form of oscillatory damped tensions. We measured the period of those oscillations and with this formula T=sqrt(L*C) we can easily get the self-inductance L. No problem with that... Now, the question I'm having trouble with is the following "Why do we use the high self-inductance solenoid instead of just connecting the function generator directly with the problem solenoid? Hint: Keep in mind that the internal resistance of the generator is 50 ohm " I don't know why!! :( 2. Relevant equations T=sqrt(L*C) 3. The attempt at a solution Perhaps it has something to do with limiting the current? Thanks in advance!!