How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network’s input and output?
Two inductors are in series between the input and output, and a capacitor is connected between the two inductors and ground
Two capacitors are in series between the input and output, and an inductor is connected between the two capacitors and ground
An inductor is connected between the input and ground, another inductor is connected between the output and ground, and a capacitor is connected between the input and output
A capacitor is connected between the input and ground, another capacitor is connected between the output and ground, and an inductor is connected between the input and output✓Correct answer
Explanation
A Pi-network is named for its shape: one shunt element at each end and one series element between them. For a low-pass response the series path must be the inductor and the two shunt paths the capacitors, so a capacitor goes from input to ground, another from output to ground, and an inductor bridges input to output.