2- The resistance in a wire (circular cross-section) is given by the formula:

R = p × L/A

Where R is the resistance in Ohms (Ω), p is the resistivity of the material (constant for a material) in Ωm, L is the length of the material, and A is the cross-sectional area of the material. Find the resistance and its uncertainty in copper wire with a length of 50 m and a radius of 10 cm. The resistivity of copper is 2 Ωm. The uncertainty of wire length and radius measurements are W _Length = 1 cm and W _radius = 0.1 cm, respectively.

Resistance = _________________ KΩ (report the answer in Kilo Ohms)

Uncertainty = _________________ % (report the uncertainty in percentage)

Answer rating: 100% (QA)

Resistance R LA A r 2 L 50m r radius 10cm 01m 2m A 01 2 00314m 2 ... View the full answer