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5. A 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What is the length of the carbon wire?
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7 votes
5. A 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What is

the length of the carbon wire?

User Eyni Kave
by
4.6k points

1 Answer

5 votes

Answer:

=0.15m

Step-by-step explanation:

l

C

​

=l

Al

​

ρ

C

​

ρ

Al

​

​

=200∗

3.5∗10

−5

2.65∗10

−8

User Kay Zed
by
4.8k points
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