Question

Which copper wire would have the lowest resistance?


A. A wire that is 2 m long and has a cross-sectional area of 1.07 cm2
B. A wire that is 1 m long and has a cross-sectional area of 1.07 cm2
C. A wire that is 1 m long and has a cross-sectional area of 0.066 cm2
D. A wire that is 2 m long and has cross-sectional area of 0.066 cm2

Answer 1

B. The resistance is directly proportional to length and inversely proportional to cross sectional area

Answer 2

A wire that is $1 m$ long and has a cross-sectional area of 1.07 $cm^{2}$ has lowest resistance.

What is resistance of wire?

Resistance is proportional to resistivity and length, and inversely proportional to cross sectional area.

To know more about Resistance here

https://brainly.com/question/14547003

#SPJ2