Is there any way to determine what type of filter you have without deriving the transfer function from a provided RCL circuit sketch? As an example i am dealing with a homework problem that gives three circuit filters and wants me to identify what type they are. I know how to get the transfer function for them and then roughly sketch a Bode plot but i feel that there must be an easier way to do this. Maybe by looking at each circuit element and whether they are in series or parallel with one another....