It is no secret that all components are conventionally divided into those that are active and those that are passive. Any active electronic component directly affects the electric current in the circuit or circuit and can amplify or convert it. This is not the case with passive ones, which often just conduct current with the same strength as they receive it by affecting its other components - capacitance, resistance, frequency, voltage, etc. Passive radio components include resistors, switching elements, inductors, etc.