contestada

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?

Respuesta :

Answer:

=0.15m

Explanation:

l

C

​

=l

Al

​

 

ρ

C

​

ρ

Al

​

​

=200∗

3.5∗10

−5

2.65∗10

−8

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