Page 24 - The Basics IA by ETron Circuit Labs

ETron Circuit Labs22Lab 12 Intro to NPN TransistorsObjective:In this lab you will learn how a NPN Transistors works and build a simple circuit to observe a NPN Transistor service as a current amplifier.Step 1 – Take InventoryUsing the Parts Inventory as shown on the right under the “Here’s What You’ll Need” section, place each part needed for this experiment on its corresponding drawing. Observe the schematic symbol for each part. Make sure that you have all the parts ready before you begin Step 2.Step 2 – Build the CircuitUsing the Schematic Diagram and the picture of the completed lab, build the lab experiment with the electronic components. Use the “Check Your Work Here” Box to verify that your wiring is correct, and then proceed to Step 3.Step 3 – Do ExperimentTheory:In this circuit, the electrons flow from the negative of the battery, through the Emitter, the Base, LED 1, the switch, the 3.3K Ohm resistor, then back to the positive of the battery. At the same time, electrons flow through the Collector, LED 2, and the 220 Ohm resistor.