Kwanini Tunatumia Copper kama Earth road kwenye nyumba zetu

Jbush Garigo

Member
Feb 24, 2019
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Naomba niwarudishe shule kidogo. Kwanini tunatumia copper Road kuunganisha waya wa Earth kwenye nyumba zetu?
The resistance of an electrical Conductor depends on 4 factors, Length, Cross section Area, type, and Temp of material.
It is known that Resistance R, ∝ L and R ∝ 1/a. That means R ∝ L/a. Means that the Resistance of wire increase when the length increase, but decrease when cross section area increases.

From R ∝ L/a, let ρ (rho). be constant means Resistivity of the material, with SI Unit of Ωm. Then Resistance R = ρL/a ohms.

NOTE THAT. Good Conductor have a low value of Resistivity and good insulators have a high value of Resistivity.
Copper is a good conductor with Resistivity of (0.017 μΩm) but Glass is a bad conductor with Resistivity of ( 10000 μΩm)
 
Kama mimi tu ninaeshinda jukwaa la siasa na michezo nimetoka kapa je wanangu wa jukwaa la Celebrities mnaojadili habari za kina Amber Rutty?!
 
Mhhhh Kwaiyo ume copper glass 17 kwa 10000
Huo mcopper hadi uchakae si chini chini ya mika50
 
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