Page 11 - The Basics IA by ETron Circuit Labs

Here’s What You’ll Need...Theory:In this simple electronic circuit, you will light up the LED with a battery. The electrons will flow out of the battery through the LED, through a Resistor, and back to the battery. The more electrons that flow, the brighter the LED will light up. A Resistor gives opposition to the flow of electrons. It acts just like a funnel does for water. A Resistor allows a certain amount of electrons to flow depending on the voltage (pressure). The higher the value of the Resistor in Ohms, the fewer electrons that will flow in the circuit. The fewer the electrons flowing, the dimmer the LED.Procedure:Assemble the circuit and connect a 9-volt battery to the Battery Snap and begin touching the probe (wire 3) to each resistor lead, one at a time, observing the brightness of the LED. You should see the LED getting dimmer as you go for R1 to R5.Observations:By doing this experiment, you have seen that the higher the value in Ohms of the Resistor, the fewer the electrons that will flow, and the dimmer will be the LED.Conclusion:By completing this Lab you can conclude that the function of a Resistor is to restrict the flow of electrons.Check Your Work HereRESISTORR1R2R3R4 R5hole 1jhole 10j220 Ohm - (Red, Red, Brown, Gold)hole 1hhole 11h1K $ (Brown, Black, Red, Gold) hole 1fhole 12f3.3K % (Orange, Orange, Red, Gold) hole 1ehole 10e6.8K & (Blue, Gray, Red, Gold) hole 1chole 9c16K % (Brown, Blue, Orange, Gold) AnodeCathodeLIGHT EMITTING DIODE (LED)LED 1hole 19i hole 20iCathode (flat side) a b c d e 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 a b c d e f g h i j 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 f g h i j REDBLACKB1WIRESW1 = 1a & 11bW2 = 1d & 1iW3 = 19j & leads on resistorsred = hole 11a black = hole 20fSCAN HERE TO SEE MORE ONLINE9LAB 5AnodeVisit us online at www.ETronCircuit.com for more exciting projects