>It acts like a fillter stops noise been fed through power and also as a
>switch on choke.

10 microhenries is not going to do much as a switch on choke. The arrangement
pictured is used mostly to stop high frequency noise coupling through the supply
line The choke puts a significant impedance in the supply line, without having
the voltage drop characteristics of a resistor of the same value as the high
frequency impedance of the choke.