Current Limiting with LED and Transistor

Overview

This experiment demonstrates how to limit the current through an LED using a transistor as a current regulator.

Components Required

• LED
• Transistor (e.g., 2N2222)
• Resistor
• Power supply
• Breadboard and wires

Procedure

1. Connect the transistor in a common emitter configuration to control the current to the LED.

2. Use the resistor to set the current limit, ensuring the LED operates within safe limits.

Expected Result

The LED will be powered on with a constant current due to the transistor regulation.