Consider a simple circuit
Initially switch S was opened till steady state is reached and then it was closed. My understanding regarding inductors is that you can't have a SUDDEN change in current flowing through an inductor otherwise it would result in VERY LARGE (infinite) potential difference across it. (as the magnitude of time derivative of current will shoot to infinity!).
After switch S is closed, we're asked to find the current across inductor 1. My teacher told me to apply flux conservation to find the current just after the switch S is closed. Flux conservation would say that current is suddenly changed as soon as switch is closed.
But how is it possible to have a SUDDEN change in current flowing across inductor 1, moreover I still don't understand exactly WHY flux is conserved.
Is my understanding regarding inductors wrong?
- How to resolve this contradiction?
- Why Flux is conserved?
EDIT: The flux conservation says that current will suddenly change because-
Clearly initial current (when switch S is opened and steady state is reached) isifferent from final (after switch S is closed).