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haas:fall2020:common:helpances:electricity [2020/10/14 10:24] – wedge | haas:fall2020:common:helpances:electricity [2020/10/14 10:26] (current) – wedge | ||
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Electricity is constantly a game of electrons (electron-ics) | Electricity is constantly a game of electrons (electron-ics) | ||
- | * **electronics** is the branch of physics and technology concerned with the design of circuits using transistors and microchips, and with the behavior and movement of electrons in a semiconductor, | + | |
Where we commonly make use of conductive materials (like platinum, gold, copper) connected between an electron-rich source (-) (commonly known as ground), and an electron-deprived one (+) | Where we commonly make use of conductive materials (like platinum, gold, copper) connected between an electron-rich source (-) (commonly known as ground), and an electron-deprived one (+) | ||
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Hooking up an LED without a resistor isn't necessarily damaging because of the 3.3v, but instead the unrestricted current: | Hooking up an LED without a resistor isn't necessarily damaging because of the 3.3v, but instead the unrestricted current: | ||
- | using Ohm's law: V = I * R, where ' | + | using Ohm's law: V = I * R, where ' |
- | I = V / R | + | **I = V / R** |
I = 3.3 / 1 (there' | I = 3.3 / 1 (there' |