By saying that the resistivity of copper is 1.69 X 10-8 Ω m , we mean that if
we take a rod of copper metal 1 m long and 1 m2
in area of cross section, then
its resistance will be 1.69 X 10 -8 Ω
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Answers
Answered by
0
Explanation:
Answer
Given,
R=10Ω
A=10×10
−8
m
2
ρ=1.6×10
−8
Ω/m
We know that,
R=ρ
A
l
l=
ρ
RA
=
1.6×10
−8
10×10×10
−8
l=62.5m
The length of wire copper wire is 62.5m
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Answered by
0
Answer:
Explanation:
Answer
Given,
R=10Ω
A=10×10
−8
m
2
ρ=1.6×10
−8
Ω/m
We know that,
R=ρ
A
l
l=
ρ
RA
=
1.6×10
−8
10×10×10
−8
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