Battery Experiments
Make a Photovoltaic Cell with a Diode
Diodes are two-terminal, asymmetric electronic components. They conduct current in one direction, owing to their…
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Battery Experiments
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How Light Emitting Diodes Light LEDs
Old fashioned incandescent light bulbs pass electricity through highly-resistant wire filaments, that get hot and…
Battery Basics
The Single-Minded Determination of a Diode
When we wrote about resistors, we compared an electronic printed circuit board to a railway…