The V - I graph for a conductor makes angle `theta` with V-axis. Here V denotes voltage and I denotes current. What is the resistance of this conductor?
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V -I graph for a conductor is a st. line, inclined to voltage axis, according to Ohm's law. If `theta` is the angle which V - I graph makes with V - axis, then slope of the graph, `tan theta = I/V = 1/R or R = 1/(tan theta) = cot theta`.
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