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