question_answer 40)

  Draw the effective equivalent circuit of the circuit shown in Fig. 4(EP).24, at very high frequencies and find the effective impedance.  

Answer:

                    At very high frequencies, i.e., capacitor is short circuited and inductor blocks the current (serving as open key). The effective equivalent circuits are shown in Fig. 4(EP).25(a) and (b) Effective impedance,