Question

Calculate the resistance of hundred metre wire long copper wire the diameter of wire is 1 millimetre take row is equal to 1.7 into 10 to the power minus 8 ohm m

Answer 1

Answer:

hope it will help you.......

Answer 2

Answer:

Explanation:

Basically it's rho*l/A

A = (π*(10^-3)^2)/4

(1.7*10^-8)*100/((π*10^-6)/4)

U have to convert millimetres to Metres and don't forget is πr^2 and the question give us diameter.