500 m
- Diameter of the wire, d = 0.200 mm = 0.0002 m
- Radius of the wire, R = d/2 = 0.0001 m
- Resistivity, ρ = 4.00 x 10^-8 Ω-m
Calculate the cross-sectional area of the wire, A:
\[ A = \pi \cdot R^2 = \pi \cdot (0.0001)^2 = 3.14 x 10^-8 m^2 \]
Now, calculate
Show more…