ʻO ka hana kūpono i nā metala kahi hopena o ka neʻeʻana o nā'āpana lepo i hoʻonuiʻia.
ʻO nā'ōnaehana o nā mea i hoʻohuiʻia i keʻano o ke alo o nā electrons valence - nā mea kohopili ma ka iwi o waho o kahi atom e noa ai e neʻe. ʻO kēia mau 'electrons free' nā mea e'āpono ai i nā metala e mālama i ka mana uila.
No ka loaʻaʻana o nā mea koho electron valea no ka neʻeʻana, hiki iā lākou ke hele i loko o ka papa lekiō e hana ai i keʻano kino o kahi mea kila.
Ma lalo o kahi māla uila, hoʻokuʻu nā lelowale liʻiliʻi i loko o nā kinipona e like me nā pōle bila bila e kuʻi ana i kekahi i kekahi, e hele ana i kahi elela i ko lākou neʻeʻana.
Ke ikaika loa ka hoʻololiʻana o ka'ikehu inā he nui ke kūpaʻa. Ma kahi papaʻaina Billiard, hiki ke hana kēia i ka wā e paʻi ka polo i kekahi pōpō'ē aʻe, e hāʻawi ana i ka nui o kona ike i ka pōʻaha aʻe. Inā paʻi kekahi pōpō i kekahi mau pōmaikaʻi'ē aʻe, e lawe ana kēlā me kēia o lākou i kahi hapa wale nō o ka ikehu.
E like me keʻano,ʻo nā mea hana pono o ka lehuila he metals i loaʻa i kahi koho pono hoʻokahi wale nō e noa ai e neʻe a hana i ka hoʻopiʻi ikaikaʻana ma nā mea electron. ʻO kēia ka hopena ma nā meaʻoi loa o ka conductive, e like me ke kālā , ke gula , a me ke keleawe .
ʻO nā metala haʻuki (aiʻole metalloids ) he kiʻekiʻeʻoi aku o nā electron valence (heʻehā aʻoi aku paha) pēlā, akā hiki iā lākou ke hoʻoholo i ka uila, ua lawaʻole lākou ma ka hana.
Eia kekahi, i ka hoʻonāʻana a hoʻopaʻaʻia paha me nā kumuhana likeʻole e like me ka helina a me ke germanium, hiki ke lilo i mau mea hoʻokele pono loa.
ʻO ka hoʻomohalaʻana ma nā metala e pono e pili i ka'ōlelo a Ohm, e'ōlelo ana he kūlike kūpono kēia i ka māmā elela i hoʻohanaʻia i ka mea hao. ʻO ka hua'ōlelo nui ma ka hoʻokomoʻana i ke kānāwai o Ohm, he kūpaʻa ia.
ʻO ka hoʻohālikelike ka mea e kū'ē i ka hoʻolōlāʻana o ke kino, e noʻonoʻo i ka ikaika o ke kila e kū'ē i ke kahe o ka manaea. Hoʻohālikelikeʻia kēia i nāʻaoʻao likeʻole o hoʻokahi cube cube o ka mea i ho'ākākaʻia e like me ka mita ohm (Ω⋅m). Hoʻohālikelikeʻia ka Resistivity e ka Greek letter rho (ρ).
Hoʻohuiʻia ka eleelectic, ma kekahiʻaoʻao, e siemens per mita (S⋅m -1 ) a ua paniʻia e ka hua'ōlelo Helene sigma (σ). Hoʻokahi hoʻokahi siemens me ka pānaʻi o hoʻokahi ohm.
Haʻawina & Resistivity ma nā Metal
Nā meahana | Hoʻonohonoho | Ke kaulike |
|---|---|---|
| ʻO ke kālā | 1.59x10 -8 | 6.30x10 7 |
| Kohe | 1.68x10 -8 | 5.98x10 7 |
| Annealed Copper | 1.72x10 -8 | 5.80x10 7 |
| ʻO ke gula | 2.44x10 -8 | 4.52x10 7 |
| ʻO Aluminium | 2.82x10 -8 | 3.5x10 7 |
| Kaomi | 3.36x10 -8 | 2.82x10 7 |
| ʻO Beryllium | 4.00x10 -8 | 2.500x10 7 |
| Kamali | 4.49x10 -8 | 2.23x10 7 |
| Ka Magnesium | 4.66x10 -8 | 2.15x10 7 |
| Molybdenum | 5.225x10 -8 | 1.914x10 7 |
| ʻO Iridium | 5.289x10 -8 | 1.891x10 7 |
| Kahiki | 5.49x10 -8 | 1.82x10 7 |
| Zinc | 5.945x10 -8 | 1.682x10 7 |
| ʻO ka papa | 6.25x10 -8 | 1.60x10 7 |
| ʻO Cadmium | 6.84x10 -8 | 1.46 7 |
| Nickel (mea koho) | 6.84x10 -8 | 1.46x10 7 |
| Ruthenium | 7.595x10 -8 | 1.31x10 7 |
| Lāhi | 8.54x10 -8 | 1.17x10 7 |
| ʻO ka hao | 9.58x10 -8 | 1.04x10 7 |
| Paʻapala | 1.06x10 -7 | 9.44x10 6 |
| Palladium | 1.08x10 -7 | 9.28x10 6 |
| ʻOi | 1.15x10 -7 | 8.7x10 6 |
| ʻO Selenium | 1.197x10 -7 | 8.35x10 6 |
| Kālā | 1.24x10 -7 | 8.06x10 6 |
| Niobium | 1.31x10 -7 | 7.66x10 6 |
| Lulu (Cast) | 1.61x10 -7 | 6.21x10 6 |
| Chromium | 1.96x10 -7 | 5.10x10 6 |
| Ke alakaʻi | 2.05x10 -7 | 4.87x10 6 |
| ʻO Vanadium | 2.61x10 -7 | 3.83x10 6 |
| Uranium | 2.87x10 -7 | 3.48x10 6 |
| Ana Paula * | 3.92x10 -7 | 2.55x10 6 |
| Zirconium | 4.105x10 -7 | 2.44x10 6 |
| Titanium | 5.56x10 -7 | 1.798x10 6 |
| Mercury | 9.58x10 -7 | 1.044x10 6 |
| ʻO Germanium * | 4.6x10 -1 | 2.17 |
| Silicon * | 6.40x10 2 | 1.56x10 -3 |
* Nānā:ʻO ka hopena o nā semiconductors (metalloids) e hilinaʻi nui loa ana i ka hikiʻana o nā mea haumia i loko o ka mea.
Pūnaewele Puna Pūnaewele
LIKE LIKE LIKE
HKH: http://eddy-current.com/conductivity-of-metals-sorted-by-resistivity/
Wikipedia: Ke Kōkua Kōkua
HKH: https://en.wikipedia.org/wiki/Electrical_conductivity