Question

Explain an activity to show that the area of cross section affects the resistance of a conductor

Answer 1

Answer:

area of cross section is inversely proportional to resustance

Explanation:

according to the formula

R = $p\frac{l}{A}$

where R = resistance

           p = resistivity

           l = length of wire

           A = area of cross section

so if the area of cross section os increased the resistance will decrease visa versa