Need a Science Fair Experiment?
Always wanting to try this, here are the results of my experiment.
For more on electricity old theories and new ones, visit:
http://amasci.com/miscon/whyhard1.html#cur for the answers.
You can do the same.
Note:. I used random parts and tried to keep the LED values low, with what I had on hand.
Transistors are like electronic (one way) valves.
The center leg controls the opening and closing or amplification of the valve. Using only that part of a PNP transistor, I devised my own diode for this experiment.
Transistors replaced vacuum tubes. They are used mostly 2 ways. To amplify the signal passing through, or to act as an “electronic switch”.
Current only goes through one way, and by increasing or decreasing the bias current on the center leg, you can control the flow though it.
In most cases, adding even higher voltage, increases the output, thus making it an amplifier.
Diodes allow electricity to go only one way, which makes a great gate.
DC electricity’s electrons always flow from Negative to Positive.
Same as Earth’s Negative electrons flying to a positive charge in the sky. AKA lightning.
Yes, it is a scientific fact. Ask Ben Franklin!.
Thanks for watching and keep using your heads.
Dave
Duration : 0:10:19
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