Restitorium
Restitorium est elementum electronicum simplicissimum, quod liberam electronum fluxionem impedit. Restitoria e materia insulatoria faciuntur. Magnitudo vehementiae qua restitorium fluxionem electricam impedit dicitur resistentia, cuius mensuralis unitas est "Ohmium," (symbolum Ω).
Dissipatio calorifica
Omnia restitoria potestatem electricam dissipant, itaque calorem generant.. Calor saepe non quaeritur, sed certae machinae, exempli gratia furnus electricus, restitoriis utuntur ut calefaciant aut accendant.
Potestas electrica P quam resistorium resistentiae R dissipat est
ubi P est Wattiis vel Juliis in temporis secundo.
Significatio Colorum anulorum
| Color | Valor restitorii in Ω | Tolerantia | Exemplum cum anulis 1 et 2 = "3" (subruber) | |||
|---|---|---|---|---|---|---|
| 1. anulus (decies) | 2. anulus (semel) | 3. anulus (multiplicatores) | 4. anulus | |||
| „nullus“ | × | — | — | — | ±20 % | |
| argenteus | — | — | 10−2 = 0,01 | ±10 % | ||
| auratus | — | — | 10−1 = 0,1 | ±5 % | ||
| niger | — | 0 | 100 = 1 | — | 33 Ω | |
| fuscus | 1 | 1 | 101 = 10 | ±1 % | 330 Ω | |
| ruber | 2 | 2 | 102 = 100 | ±2 % | 3.3 kΩ | |
| subruber | 3 | 3 | 103 = 1,000 | — | 33 kΩ | |
| flavus | 4 | 4 | 104 = 10,000 | — | 330 kΩ | |
| viridis | 5 | 5 | 105 = 100,000 | ±0,5 % | 3.3 MΩ | |
| caeruleus | 6 | 6 | 106 = 1,000,000 | ±0,25 % | 33 MΩ | |
| violaceus | 7 | 7 | 107 = 10,000,000 | ±0,1 % | ||
| canus | 8 | 8 | 108 = 100,000,000 | ±0,05 % | ||
| albus | 9 | 9 | 109 = 1,000,000,000 | — | ||
| Color | 1. anulus (centies) | 2. anulus (decies) | 3. anulus (semel) | 4. anulus (multiplicatores) | 5. anulus (tolerantia) | 6. anulus (coefficiens temperaturae) |
|---|---|---|---|---|---|---|
| argenteus | 10−2 = 0,01 | |||||
| auratus | 10−1 = 0,1 | |||||
| niger | 0 | 0 | 100 = 1 | 200 10−6 K−1 | ||
| fuscus | 1 | 1 | 1 | 101 = 10 | ±1 % | 100 10−6 K−1 |
| ruber | 2 | 2 | 2 | 102 = 100 | ±2 % | 50 10−6 K−1 |
| subruber | 3 | 3 | 3 | 103 = 1,000 | 15 10−6 K−1 | |
| flavus | 4 | 4 | 4 | 104 = 10,000 | 25 10−6 K−1 | |
| viridis | 5 | 5 | 5 | 105 = 100,000 | ±0,5 % | |
| caeruleus | 6 | 6 | 6 | 106 = 1,000,000 | ±0,25 % | 10 10−6 K−1 |
| violaceus | 7 | 7 | 7 | ±0,1 % | 5 10−6 K−1 | |
| canus | 8 | 8 | 8 | ±0,05 % | ||
| albus | 9 | 9 | 9 |
Notes
Nexus interni
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