The resistance of a certain size of copper wire is given as: R = R 0 [1 + (T 20)] Where R 0 =

The resistance of a certain size of copper wire is given as:

R = R ₀ [1 + α(T – 20)]

Where R ₀ = 6 ± 0.3 percent is the resistance at 20°C, α = 0.004°C ^-1 ± 1 percent is the temperature coefficient of resistance, and the temperature of the wire is T = 30 ± 1°C. Calculate the resistance of the wire and its uncertainty.