The resistivity of copper wire is
1.76 X 10-8,2 m and its radius is 10-3.
Find the length of the wire needed to have
a resistance of 10.5 12.
m.
Answers
Answered by
0
Answer:
R = ρl/A
⇒ R = ρl/πr2 ...(1)
Where,
R = 10.5 Ω, ρ = 1.76 * 10-8Ωm and radius r = 1mm = 1 * 10-3m
From equation (1)
length l = πr2R/ρ
On putting all values you will get
length l = 1873.3 m
Hope This Helps You!!
Explanation:
Answered by
0
Answer:
Hi there!!
Explanation:
happy helping
refer to the picture...
since your resistance value is not clearly mentioned...I have done it like this....
use this formula....
Attachments:
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