Anolog electronics

Analog electronics is a branch of electronics that deals with continuously variable signals (as opposed to digital electronics, which deals with discrete signals). It focuses on the design and analysis of circuits that process real-world analog signals such as sound, light, temperature, etc. Here's an overview of key concepts in analog electronics: --- Basic Concepts 1. Analog Signal A continuous signal that varies smoothly over time, e.g., voltage or current that represents sound or temperature. 2. Voltage & Current Voltage (V): Electrical potential difference. Current (I): Flow of electric charge. 3. Ohm’s Law , where R is resistance. --- Important Components 1. Resistors (R) Limit current and divide voltages. 2. Capacitors (C) Store energy in an electric field; used in filters, timing circuits. 3. Inductors (L) Store energy in a magnetic field; used in filters and tuning circuits. 4. Diodes Allow current to flow in one direction only. Used for rectification. 5. Transistors (BJT, FET) Act as amplifiers or switches. **BJT