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Ohm's Law + Joule's Law Wheel PCB Ornament/Coaster

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Original price was: $4.40.Current price is: $2.64.

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Brand : ProAudio Electronics
Item Width : 100 mm
Material : FR-4, wood
Item Length : 100 mm
PCB Type : Double-Sided PCB
Item Height : 1.6 mm

Includes one 10 cm (3.94″) diameter PCB wheel. Available in green/gold, red/gold, black/gold, and laser etched wood (NOTE: The wooden version does not have the portrait of Ohm and Joule; the other side is blank. The wood is also unfinished, so if you plan on using it as a coaster, I would recommend applying a clear coat first). A Stock: No cosmetic defects (All wooden boards are in A stock condition) B Stock: Some minor cosmetic defects (Surface scratches, soldermask defects. Does not impact readability. Please see image in listing showing typical defects) This is a handy reference chart combining Ohm’s Law and Joule’s Law, manufactured as a 10 cm diameter printed circuit board. A hole is provided at the top for hanging the wheel. The front side contains expressions for making calculations involving voltage, current, resistance, and power. To calculate one of the inner quantities, use two known quantities and the appropriate outer expression. Example: a 220 ohm resistor with 750 milliamperes of current flowing through it has a power dissipation of 123.75 watts and produces a voltage drop of 165 volts. The opposite side features public domain artwork of Georg Simon Ohm (1789 – 1854) and James Prescott Joule (1818 – 1889). “If I have seen further, it is by standing on the shoulders of giants” – Excerpt from a 1675 letter from Sir Isaac Newton to Robert Hooke Thickness: 1.6 mm (PCB version) 5 mm (Wood version) PCB Finish: ENIG (immersion gold) Diameter: 10 cm (~3.94 inches) If you would like to order a PCB with your own custom artwork, feel free to send me a message for a quote. We can order as few as 5 boards.

color

Wood, Red/Gold (B Stock), Black/Gold (B Stock), Green/Gold (A Stock), Green/Gold (B Stock)

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