Is é Farad an t-aonad toilleas. Tá sé ainmnithe i ndiaidh Michael Faraday.
Tomhaiseann an farad an méid luchtaithe leictreachais a charntar ar an toilleoir.
Is é 1 farad toilleas toilleora a bhfuil 1 coulomb i gceannas air nuair a chuirtear titim voltais 1 bholta i bhfeidhm .
1F = 1C / 1V
| ainm | siombail | tiontú | sampla |
|---|---|---|---|
| picofarad | pF | 1pF = 10 -12 F. | C = 10pF |
| nanofarad | nF | 1nF = 10 -9 F. | C = 10nF |
| microfarad | μF | 1μF = 10 -6 F. | C = 10μF |
| millifarad | mF | 1mF = 10 -3 F. | C = 10mF |
| farad | F | C = 10F | |
| kilofarad | kF | 1kF = 10 3 F. | C = 10kF |
| megafarad | MF | 1MF = 10 6 F. | C = 10MF |
Tá an toilleas C in farad (F) cothrom leis an toilleas C i picofarad (pF) uaireanta 10 -12 :
C (F) = C (pF) × 10 -12
Sampla - tiontaigh 30pF go farad:
C (F) = 30 pF × 10 -12 = 30 × 10 -12 F.
Tá an toilleas C in farad (F) cothrom leis an toilleas C in nanofarad (nF) uaireanta 10 -9 :
C (F) = C (nF) × 10 -9
Sampla - tiontaigh 5nF go farad:
C (F) = 5 nF × 10 -9 = 5 × 10 -9 F.
Tá an toilleas C i farad (F) cothrom leis an toilleas C i micreafarad (μF) uaireanta 10 -6 :
C (F) = C (μF) × 10 -6
Sampla - tiontaigh 30μF go farad:
C (F) = 30 μF × 10 -6 = 30 × 10 -6 F = 0.00003 F.
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