The leaf of a corn plant has a resistance of 2.0M Ohms, as measured between two electrodes placed 30cm apart along the leaf. The leaf has a width of 3.5cm and thickness of 0.2mm.  The two electrodes are replaced by two wires connected to the terminals of a 1.5Volt battery. Calculate the current that would flow within the leaf. A) 0.75 micro Amp B) 32 milli Amp C) 71 Amp D 3.0 mega Amp

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.