The simulation shows implementation of LC π and T filters designed for a 1 kHz signal. Both filters use 100 nF capacitors and 10 mH inductors, giving a cutoff frequency around 1.6 kHz. The π filter uses a capacitor–inductor–capacitor (C–L–C) structure, while the T filter uses an inductor–capacitor–inductor (L–C–L) layout. The simulation input is a 2 kHz sine wave, slightly above the cutoff, allowing clear observation of attenuation. The output waveforms confirm proper low-pass filter behavior, w