What symbols are used to show different types of filters (low-pass, high-pass) in schematics?
In schematics, different types of filters are shown using combinations of resistor, inductor, and capacitor symbols. A low-pass filter might be represented by a capacitor followed by a resistor, while a high-pass filter could be shown as a resistor followed by a capacitor. The arrangement and type of these components indicate the filter's characteristics.