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Q5. The resistance, R ohms, and the voltage, V volts, recorded during an experiment are shown in Table Q5.

(a) Draw a straight line graph to show that R and V are related by a law of the form (10)

R = a/V + b where a and b are constants.

Suggested scales: horizontal axis 2 cm = 0.4

vertical axis 2 cm = 2

(b) Using the graph drawn in Q5(a), determine approximate values for a and b. (6)