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B5 practical: EMF and internal resistance example results

The data for all parts of the experiment was collected in one table.The uncertainties were estimated from the smallest division of the scale.The uncertainty in 1/I was found from (1/Imin - 1/Imax)/2The equation for this line is R = ε/I - r so the gradient = ε = 1.39 ± 0.03 VThe intercept is -r = 0.35 ± 0.14 ΩThis line has the equation V = -Ir + ε so gradient = -r = -0.44 ± 0.02 ΩThe intercept = ε = 1.305 ±...

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