Farkon Daidaitaccen Ayyuka

Don samun yadda ake koyar da zabe ta gine mai sarrafa na aiki / bayanin aiki, ya kam ne a tabbatar da cikakken Farkon electrical da ake da shi. Farkon electrical da ake da shi suna da muhimmanci wajen yawan abubuwan da ke da shi a kan yadda ake amfani da su a fannin Engineering Electrical. Ga wasu daga cikin Farkon electrical da ake da shi a kan abubuwan da ake amfani da su a fannin-

• Resistivity

• Conductivity

• Temperature coefficient of Resistance

• Permittivity

• Thermoelectricity

Resistivity

Yana daya da farko da ake da shi a kan mutanen abubuwan da ke da shi a kan yadda ake ciyasar da electric current a kan abubuwan. Yana da ma'ana da -da conductivity. Ana sanya da ‘ρ’. Resistivity tana da conductor zan iya ba da haka

Amsa, ‘R’ ita ce resistance ta conductor a Ω.
‘A’ ita ce misalai na tsakiyar conductor a m2
‘l’ ita ce gaskiya ta conductor a mita SI unit ta resistivity tana da Ω¦-mita. Resistivity tana da wasu abubuwan da ake amfani da su a nan

Sl. No.	Element	Resistivity at 20oC in Ω – m
1	Silver	1.59 × 10-8
2	Copper	1.7 × 10-8
3	Gold	2.44 × 10-8
4	Aluminum	2.82 × 10-8
5	Tungsten	5.6 × 10-8
6	Iron	1.0 × 10-7
7	Platinum	1.1 × 10-7
8	Lead	2.2 × 10-7
9	Manganin	4.82 × 10-7
10	Constantan	4.9 × 10-7
11	Mercury	9.8 × 10-7
12	Carbon (Graphite)	3.5 × 10-5
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