# Difference Between Active and Passive Components in Electronics ## 🔋 Active Components Active components are electronic devices that **can amplify signals**, **control current**, or **produce energy**. They require an external power source to function. ### Examples: - **Transistors** – Amplify or switch electronic signals - **Diodes** (including LEDs) – Allow current in one direction, used in rectification - **Integrated Circuits (ICs)** – Contain multiple active and passive components ### Key Features: - Require external power to operate - Can **inject power** into a circuit - Can **control the flow** of electricity - Used for **amplification**, **signal processing**, and **switching** --- ## 🔌 Passive Components Passive components cannot amplify or generate power. They only **respond to** the electrical signals applied to them. ### Examples: - **Resistors** – Limit current flow - **Capacitors** – Store and release energy as an electric field - **Inductors** – Store energy in a magnetic field - **Transformers** – Transfer energy between circuits via magnetic fields ### Key Features: - Do **not require** external power to operate - **Cannot amplify** signals - Used for **filtering**, **energy storage**, **tuning**, and **impedance matching** --- ## ⚖️ Quick Analogy - **Passive Component**: Like a **valve or container** — it regulates or stores energy. - **Active Component**: Like a **pump** — it can **add energy** and control the system dynamically. --- # 🔋 10 Active Electronic Components ![Active Components](./active_components_symbols.png) # 🔌 10 Passive Electronic Components ![Passive Components](./passive_components_symbols.png) ------