Question

Correct answer will be mark as Brainliest........calculate the resistance of copper wire of 0.1km and 0.5 mm diameter of wire and resistivity of the wire 1.7×10 raised to the power -8....​

Answer 1

Explanation:

Given

Resistivity (p)=1.7×10^-8ohm-m

length (l)=100m

Area(A)=3.14×0.25×10^-3×0.25×10^-3

=1.9×10^-7m^2

Resistance (R)=pl/A=1.7×10^-8×100/1.9×10^-7

=8.9ohms