E7C01:

How are the capacitors and inductors of a low-pass filter Pi-network arranged between the network's input and output?

  1. Two inductors are in series between the input and output, and a capacitor is connected between the two inductors and ground
  2. Two capacitors are in series between the input and output, and an inductor is connected between the two capacitors and ground
  3. 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
  4. A capacitor is connected between the input and ground, another capacitor is connected between the output and ground, and an inductor is connected between input and output