GUARDIAN briefly introduces the advantages of electronics component

Active components rely on a source of energy (usually from the DC circuit, which we have chosen to ignore) and usually can inject power into a circuit, though this is not part of the definition.[1] Active components include amplifying components such as transistors, triode vacuum tubes (valves), and tunnel diodes.

　Electromechanical components can carry out electrical operations by using moving parts or by using electrical connections.

electronics components
1. Resistor: Its function is to limit the passage of voltage and current; Capacitor: It plays the function of cross-connection coupling, filtering, direct communication and tuning; 2. Inductance: overpassing
Flow DC, block high frequency, pass low frequency or filter, that is, the high frequency signal will encounter resistance when passing through the inductance coil, and the resistance presented when the low frequency signal passes is relatively small, that is,
Low-frequency signals can pass through more easily, and the resistance of the inductance coil to DC is almost zero; 3. Diodes: play the role of rectification, detection and voltage stabilization; 4. Transistor: play the role of
To amplify the AC and pulse current and impedance transformation; 5. Integrated circuit: play the role of centralized application of the above functions. | GUARDIAN

Passive components cannot introduce net energy into the circuit. They also cannot rely on a source of power, except for what is available from the (AC) circuit they are connected to. As a consequence, they cannot amplify (increase the power of a signal), although they may increase a voltage or current (such as is done by a transformer or resonant circuit). Passive components include two-terminal components such as resistors, capacitors, inductors, and transformers.